Cisco Systems IP Telephony OL-11591-01 User Manual

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C H A P T E R 12

IP Video Telephony Configuration

This topic provides an overview of how IP Video Telephony was configured for Cisco IP Communications Release 5.1(1) testing. This topic does not include detailed installation and configuration instructions. Rather, it is intended to provide you with guidance and serve as a reference as you set up video devices in your IP telephony solution.

For additional information and guidelines for implementing Cisco IP Video Telephony, refer to the documents listed Table 12-1.You can also refer to documentation provided by the vendors of Tandberg video endpoints and Polycom video endpoints.

Table 12-1

IP Video Telephony Related Documentation

 

 

 

Document

 

Reference

 

 

Cisco Unified CallManager System Guide

http://www.cisco.com/univercd/cc/td/doc/product/

“Understanding Video Telephony” chapter

voice/c_callmg/5_0/sys_ad/5_0_2/ccmsys/index.htm

 

 

IP Video Telephony Solution Reference

http://www.cisco.com/go/srnd

Network Design (SRND) for

 

Cisco Unified CallManager

 

 

 

Cisco Unified Videoconferencing 3500 Series

http://www.cisco.com/en/US/products/hw/video/

video conferencing products documentation

ps1870/tsd_products_support_series_home.html

 

 

Cisco Unified Video Advantage

http://www.cisco.com/en/US/products/sw/voicesw/

documentation

 

ps5662/tsd_products_support_series_home.html

 

 

Deploying Video Telephony

http://cco/en/US/partner/about/ac123/ac114/ac173/

 

 

Q3-04/tech_videotel.html

 

 

(You must be a registered user of Cisco.com to access

 

 

this URL)

 

 

 

This topic includes the following sections:

IP Video Telephony Components and Topology, page 12-2

Supported Call Types, page 12-4

Call Routing, page 12-5

Gatekeeper Configuration for IP Video Telephony, page 12-7

Cisco Unified Videoconferencing 3540 MCU Conference Bridge Configuration for IP Video Telephony, page 12-9

Cisco Unified Videoconferencing Gateway Configuration for Video PSTN Gateway, page 12-13

 

 

System Test Architecture Reference Manual for IP Telephony

 

 

 

 

 

 

 

OL-11591-01

 

 

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Chapter 12 IP Video Telephony Configuration

IP Video Telephony Components and Topology

Cisco Unified CallManager Configuration for IP Video Telephony, page 12-16

Video Endpoints Configuration, page 12-26

IP Video Telephony Components and Topology

The IP Video Telephony test deployment included the following components:

Cisco Unified IP Phone 7985

Cisco Unified Video Advantage

Cisco Unified Videoconferencing 3521 with EMP

Cisco Unified Videoconferencing 3526

Cisco Unified Videoconferencing 3540 MC10A/MC10A MCU with EMP3

Cisco Unified Videoconferencing 3540-GW2P

Cisco Unified Videoconferencing 3545 MCU with EMP3

Cisco Unified Videoconferencing 3545-GW2P

Third-partySCCP endpoints

Third-partyH.323 endpoints

SCCP/H.323 conference bridge

Figure 12-1 shows how Cisco IP Video Telephony was deployed in Cisco IP Communications Release 5.1(1).

 

System Test Architecture Reference Manual for IP Telephony

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Chapter 12 IP Video Telephony Configuration

IP Video Telephony Components and Topology

Figure 12-1

 

IP Video Telephony Topology

 

 

 

 

 

 

 

Dallas

 

 

 

 

 

 

 

(DFW)

 

 

 

 

 

Tandberg

 

SIP

 

 

 

Raleigh

SCCP

 

 

 

 

 

(RDU)

 

MXP 990 x 2

 

 

 

 

 

7985

 

SIP

 

 

 

 

 

 

 

 

 

 

SCCP

Polycom

H.323

 

 

 

 

 

 

 

SIP

 

 

 

 

VSX7000 x 2

 

 

 

 

 

Tandberg

 

 

 

 

 

H.225

 

 

 

 

 

 

 

T1000 MXP

 

 

SCCP

 

 

 

 

 

 

 

 

 

New York

 

 

 

 

 

 

 

 

Tandberg

 

 

 

 

H.225

(NYC)

 

 

 

 

 

 

 

T1000 MXP

 

 

GK

WAN GK

 

 

SCCP

 

 

 

Video Zone

 

 

 

 

7985

H.323

H.323

GK

 

 

Tandberg

 

 

 

Video Zone

 

 

T1000

 

 

 

IP

 

 

 

 

 

 

 

 

SCCP

 

 

Videoconferencing

 

 

 

 

 

HNL2

IP

Tandberg

 

MCU

 

 

 

RAS

 

 

 

 

 

Cisco VT

 

 

 

 

 

 

 

 

 

SRST

SCCP Advantage

MXP 990

 

 

 

 

H.225

 

Aggregator

H.225

 

 

 

SCCP

 

 

H.323

 

 

 

 

 

 

 

 

SIP

H.323

HNL1

 

 

Polycom

 

 

 

SIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSX7000

 

 

 

 

 

 

 

 

 

SRST

SCCP

7985

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rockford

 

 

 

 

 

 

San Jose

 

 

 

 

 

 

 

 

 

Tandberg

 

 

 

 

(RFD)

 

 

 

 

 

 

(SJC)

 

 

 

 

 

 

 

 

 

 

IP

T1000

 

 

 

 

 

 

 

 

 

 

SCCP

Cisco VT

 

 

 

 

 

 

 

 

 

 

 

Advantage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tandberg

Polycom

 

 

SCCP

 

 

 

 

 

SIP

 

 

MXP 990 VSX7000

 

 

 

SCCP

SCCP

SCCP

 

 

SCCP

SCCP

 

 

7985

 

 

 

 

SCCP

 

 

 

 

 

 

IP

 

 

 

 

 

IP

 

 

 

155565

7985

Tandberg

Cisco VT

 

Tandberg

 

Tandberg

7985

Cisco VT

Tandberg

 

 

 

 

T1000

Advantage

T1000 MXP

T1000 MXP

Advantage

 

 

 

 

 

 

 

 

 

 

T1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 12-2 shows an example of amulti-sitecentralized video deployment that uses a Cisco IP Video Telephony PSTN gateway.

System Test Architecture Reference Manual for IP Telephony

 

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Chapter 12 IP Video Telephony Configuration

Supported Call Types

Figure 12-2Multi-SiteCentralized VIdeo Deployment using Cisco IP Video Telephony PSTN Gateway

 

 

 

 

T1000

T550 MXP

 

 

 

 

SCCP

 

 

 

 

SCCP controlled

 

 

 

 

controlled

 

 

 

 

 

T1000

T2500

 

 

 

 

H.323 controlled

 

 

 

IP

SCCP controlled

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco Unified Video

 

 

 

 

 

Advantage SCCP

T770 MXP

 

 

 

2621XM SRST

controlled

SCCP controlled

 

 

 

(MGCP) GW

 

 

T880

 

 

 

CAT3524

 

H.323 controlled

 

 

 

 

 

MPLS

 

 

IP

 

 

 

 

 

V

3521 Video BRI GW

 

 

 

 

 

CAT3524

 

 

 

Cisco Unified

 

 

 

for SCCP endpoint

7206 VXR

 

 

 

 

Video Advantage

 

 

 

 

SCCP controlled

 

ATM/Frame Relay

T1000

T550 MXP

 

 

SCCP

 

 

or MPLS

 

 

 

 

controlled

SCCP controlled

 

 

 

 

 

E1-E3

 

 

 

 

 

 

 

 

 

 

 

CAT6509

ATM Link

 

 

 

IP

 

V

Video

 

 

 

 

 

Gatekeeper

 

 

 

Cisco Unified Video

 

 

 

 

 

 

Advantage SCCP

 

 

 

 

2621XM SRST

controlled

 

 

 

 

(MGCP) GW

 

 

 

V

PRI

PSTN

 

 

CAT3524

 

 

cloud

BRI

V

 

 

 

 

 

Video MCU

Video PSTN

 

3521 Video BRI GW

 

 

 

PRI

 

 

for SCCP endpoint

H.323 or SCCP controlled

Gateway

 

 

 

3511 and EMP/3540

3540/3526

 

 

 

 

155514

 

 

 

Tanberg video

 

 

 

 

 

 

 

 

 

 

 

conference H.320

 

 

 

 

 

T6000

 

 

 

Supported Call Types

The IP Video Telephony deployment supports video calls made between endpoints as shown in Table 12-2.In this table,

V = video and audio

A = audio only

System Test Architecture Reference Manual for IP Telephony

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Chapter 12 IP Video Telephony Configuration

Call Routing

Table 12-2

IP Video Telephony Call Type Matrix

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSTN

 

 

 

 

SCCP

 

 

 

 

Cisco

 

Third

Third

Cisco

Cisco

 

SCCP

H.323

 

Unified

 

Party

Party

Unified

Unified

SCCP

MCU

MCU

PSTN

VIdeo-

 

SCCP

H.323

IP Phone

Video

Audio

Confer-

Confer-

Gate-

confer-

 

Endpoint

Endpoint

7985

Advantage

Only

ence

ence

ways

encing

 

 

 

 

 

 

 

 

 

 

Third Party

V

V

V

V

A

V

V

A

V

SCCP

 

 

 

 

 

 

 

 

 

Endpoint

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Third Party

V

V

V

V

A

V

V

A

V

H.323

 

 

 

 

 

 

 

 

 

Endpoint

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCCP Cisco

V

V

V

V

A

V

V

A

V

Unified

 

 

 

 

 

 

 

 

 

Video

 

 

 

 

 

 

 

 

 

Advantage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCCP

A

A

A

A

A

A

A

A

A

Audio Only

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCCP MCU

V

V

V

V

A

V

V

A

V

Conference

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H.323 MCU

V

V

V

V

A

V

V

A

V

Conference

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSTN1

A

A

A

A

A

A

A

A

A

Gateways

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H.225 Trunk

V

V

V

V

A

V

V

A

V

 

 

 

 

 

 

 

 

 

 

SIP Trunk

V

V

V

V

A

V

V

A

A

 

 

 

 

 

 

 

 

 

 

1. PSTN = public switched telephone network.

Note Cisco Unified CallManager 5.1 supports security on the Cisco Unified IP Phone 7940G/7941G/7960G/ 7961G/ 7970G/7971G running SCCP. These phone models also have video capabilities when associated with Cisco Unified Video Advantage. If two securevideo-capableendpoints call each other, the SCCP signaling and audio media path will be encrypted. Video will work, however signaling and the video media path to Cisco Unified Video Advantage will not be encrypted.

Call Routing

The IP Video Telephony deployment supports the following call routings. SCCP endpoints include SCCP Tandberg T1000, and Cisco Unified Video Advantage associated with Cisco IP Phone models 7940G/7960G/7970G. H.323 endpoints include H.323 Tandberg T1000 and Polycom VSX 7000.

SCCP endpoint > Cisco Unified CallManager > SCCP endpoint

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > SCCP endpoint

SCCP endpoint > Cisco Unified CallManager > Gatekeeper > H.323 endpoint

 

 

System Test Architecture Reference Manual for IP Telephony

 

 

 

 

 

 

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Chapter 12 IP Video Telephony Configuration

Call Routing

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > Gatekeeper > H.323 endpoint

SCCP endpoint > Cisco Unified CallManager > Gatekeeper > Cisco Unified CallManager > Gatekeeper > H.323 endpoint

SCCP endpoint > Cisco Unified CallManager > SIP trunk> Cisco Unified CallManager > Gatekeeper > H.323 endpoint

SCCP endpoint > Cisco Unified CallManager > SIP trunk> Cisco Unified CallManager > SCCP endpoint

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > Gatekeeper > Cisco Unified CallManager > SCCP endpoint

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > Gatekeeper > Cisco Unified CallManager > Gatekeeper > H.323 endpoint

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > SIP Trunk > Cisco Unified CallManager > Gatekeeper > H.323 endpoint

SCCP endpoint > Cisco Unified CallManager > Gatekeeper > Cisco Unified CallManager > SCCP endpoint

SCCP adhoc or Meet-Mevideo conferences with these call flows:

SCCP endpoint > Cisco Unified CallManager > SCCP MCU

SCCP endpoint > Cisco Unified CallManager > Gatekeeper > Cisco Unified CallManager > SCCP MCU

SCCP endpoint > Cisco Unified CallManager > SIP trunk > Cisco Unified CallManager > SCCP MCU

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > SCCP MCU

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > Gatekeeper > Cisco Unified CallManager > SCCP MCU

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > SIP trunk > Cisco Unified CallManager > SCCP MCU

H.323 adhoc or scheduled video conferences with these call flows:

SCCP endpoint > Cisco Unified CallManager > H.323 MCU

SCCP endpoint > Cisco Unified CallManager > Gatekeeper > Cisco Unified CallManager > H.323 MCU

SCCP endpoint > Cisco Unified CallManager > SIP trunk > Cisco Unified CallManager > H.323 MCU

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > H.323 MCU

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > Gatekeeper > Cisco Unified CallManager > H.323 MCU

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > SIP trunk> Cisco Unified CallManager > H.323 MCU

PSTN call with these call flows:

SCCP endpoint > Cisco Unified CallManager > Cisco Unified Videoconferencing gateway > PSTN > Cisco Unified Videoconferencing gateway > Gatekeeper > Cisco Unified CallManager > SCCP endpoint

 

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Chapter 12 IP Video Telephony Configuration

Gatekeeper Configuration for IP Video Telephony

SCCP endpoint > Cisco Unified CallManager > Cisco Unified Videoconferencing gateway > PSTN > Cisco Unified Videoconferencing gateway > Gatekeeper > Cisco Unified CallManager > H.323 endpoint

SCCP endpoint > Cisco Unified CallManager > Cisco Unified Videoconferencing gateway > PSTN > H.320 endpoint

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > Cisco Unified Videoconferencing gateway > PSTN > H.320 endpoint

H.323 endpoint > Gatekeeper > Cisco Unified CallManager > Cisco Unified Videoconferencing gateway > PSTN > Cisco Unified Videoconferencing gateway > Gatekeeper >

Cisco Unified CallManager > SCCP endpoint

H.320 endpoint > Cisco Unified Videoconferencing Gateway > Gatekeeper > Cisco Unified CallManager > SCCP or H.323 endpoint

The call routing for video calls functions just as the call routing for audio calls. For more information, refer to the “Understanding Video Telephony” chapter in Cisco Unified CallManager System Guide.

Cisco Unified CallManager supports the Dynamic H.323 Addressing call routing feature. This feature allows H.323 endpoints with DHCP addressing to remain registered to a Gatekeeper while Cisco Unified CallManager controls call routing. For more information, refer to the “Understanding Video Telephony” section in Cisco Unified CallManager System Guide. (Table 12-1 provides a link to this document.)

Gatekeeper Configuration for IP Video Telephony

The following sections provide a general description of how gatekeepers were configured for IP Video Telephony:

Gatekeeper Configuration Overview, page 12-7

Gatekeeper Call Routing, page 12-9

Gatekeeper Configuration Overview

Gatekeepers were configured in pairs to create gatekeeper clusters that provide gatekeeper-basedCall Admission Control and call routing redundancy. The endpoints must provide alternate gatekeeper registration so that the endpoints can utilize both gatekeepers in the cluster.

Three local gatekeeper zones were created, one for Cisco Unified CallManager, one for Cisco Unified Videoconferencing MCUs, and one for the H.323 endpoints. Zones for Cisco Unified Videoconferencing MCUs and H.323 endpoints were configured with Invia and Outvia parameters. This configuration allows gatekeepers to route incoming and outgoing calls to and from these zones to

Cisco Unified CallManager.

The Send Product ID And Version ID Cisco Unified CallManager service parameter must be set to True to allow the Dynamic H.323 Addressing feature to work and to allow the gatekeeper to route incoming or outgoing calls to the Cisco Unified CallManager in a given zone.

After the Cisco Unified CallManager service parameter Send Product ID And Version ID is set to True, the endpoint type of Cisco Unified CallManager H.225 trunks will change to H323-GW.

The following partial output from the Show Gatekeeper Endpoints command shows a single

Cisco Unified CallManager H.225 trunk that is registered to a gatekeeper:

SJC-RFD-GK-1#showgatekeeper endpoints

GATEKEEPER ENDPOINT REGISTRATION

 

 

System Test Architecture Reference Manual for IP Telephony

 

 

 

 

 

 

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Chapter 12 IP Video Telephony Configuration

Gatekeeper Configuration for IP Video Telephony

 

================================

 

 

CallSignalAddr

Port RASSignalAddr

Port Zone Name

Type

Flags

---------------

--------------------

--------------

----

-----

0.9.10.5

33209 10.9.10.5

32783 SJC-MP-GK-1

H323-GW

 

H323-ID:SJC-RFD-MP-1-CM1_2_3

 

 

 

Voice Capacity Max.= Avail.= Current.= 0

Zone prefixes were configured in the Cisco Unified CallManager zone for intercluster call flows. This configuration is required for intercluster gatekeeper-controlledcall routing. The other two zones do not require a local zone prefix to be configured. The endpoints and MCUs are directed to these zones by the Zone Subnet command in the gatekeeper configuration.

The Cisco Unified CallManager cluster uses the default technology prefix 1#* to register its gatekeeper-controlledintercluster trunks in the Cisco Unified CallManager zone. Then,

Cisco Unified CallManager cluster registers a dedicated H.225 gatekeeper-controlledtrunk to the MCU zone. The trunk and the MCU zone are used for invites initiated from the MCU Conference control web pages. Finally, the Cisco Unified CallManager cluster registers a special trunk called RasAggregator to the H.323 endpoints zone. This trunk is dynamically created and registered as a result of the H.323 endpoints device pool configuration in Cisco Unified CallManager.

The following partial output from the Show Gatekeeper Endpoints command shows a single

Cisco Unified CallManager RasAggregator trunk that is registered to a gatekeeper:

SJC-RFD-GK-1#showgatekeeper endpoints

 

 

 

GATEKEEPER ENDPOINT REGISTRATION

 

 

 

================================

 

CallSignalAddr

Port

RASSignalAddr

Port Zone Name

Type

---------------

-----

---------------

--------------

----

10.9.10.5

33206

10.9.10.5

32783 SJC-VIDEO-GK-1

H323-GW

H323-ID:RasAggregator_1#*_SJC-VIDEO-GK-1_3

 

Voice Capacity Max.= Avail.= Current.= 0

 

A single RasAggregator trunk was created for all gatekeeper-controlledH.323 endpoints that share the same gatekeeper zone and Cisco Unified CallManager group. Allgatekeeper-controlledH.323 endpoints within the same gatekeeper endpoint zone must be configured as part of the same Cisco Unified CallManager group and device pool, otherwise Cisco Unified CallManager will register multiple RasAggregator trunks to a single gatekeeper endpoint zone. In this situation, some incoming calls from the H.323 endpoints will fail.

Note This configuration preventsgatekeeper-controlledH.323 endpoints from being load balanced across multiple Cisco Unified CallManager servers by using device pools and Cisco Unified CallManager groups. One way to accomplish such load balancing is to create multiple gatekeeper zones dedicated to H.323 endpoints for each device pool or Cisco Unified CallManager group.

For an example of a video gatekeeper configuration, see the >>>>>>>

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified Videoconferencing 3540 MCU Conference Bridge Configuration for IP Video Telephony

Gatekeeper Call Routing

Calls are routed through the gatekeeper as follows:

Inbound call to Cisco Unified CallManager zone from other gatekeepers—Routedto the registered Cisco Unified CallManagerGatekeeper-controlledH.225 intercluster trunks within the Cisco Unified CallManager zone in a Round Robin distribution algorithm using the Default Technology prefix.

Outbound call from Cisco Unified CallManager zone to other gatekeepers—Normalgatekeeper call routing using location request.

Inbound Call to MCU zone from other gatekeepers—Routedout to the registered Cisco Unified CallManagergatekeeper-controlledH.225 intercluster trunks within the Cisco Unified CallManager zone in a round robin distribution algorithm using the Default Technology prefix. Then routed by Cisco Unified CallManager directly to the MCU via its H.323 gateway.

Outbound call from MCU—Routedto Cisco Unified CallManager via the MCU dedicated H.225gatekeeper-controlledtrunks that are registered to the MCU zone.

Outbound call from H.323 endpoints—Routedto Cisco Unified CallManager via RasAggregator H.225 trunk.

Inbound call from other Gatekeepers to H.323 endpoints—Callis first routed out the Registered Cisco Unified CallManagergatekeeper-controlledH.225 trunk within the Cisco Unified CallManager zone in a round robin distribution algorithm using the Default Technology prefix. It is then routed back to the gatekeeper video endpoint zone via the RasAggregator trunk.

Inbound call from MCUs to H.323 endpoints—Callis first routed to Cisco Unified CallManager via the MCU dedicated H.225gatekeeper-controlledtrunks that are registered to the MCU zone. It is then routed back to the Gatekeeper Video endpoint zone via the RasAggregator trunk.

Inbound call from Cisco Unified Videoconferencing gateway—Callis routed to the registered Cisco Unified CallManager gatekeeper. The gatekeeper receives an admission request from the Cisco Unified Videoconferencing gateway, and the gatekeeper replies with an admission confirm to send the call to Cisco Unified CallManager via the RasAggregator trunk.

Cisco Unified Videoconferencing 3540 MCU Conference Bridge Configuration for IP Video Telephony

This section provides basic information about configuring the Cisco Unified Videoconferencing 3540 for IP video telephony.

For related information, refer to Administrator's Guide for Cisco Unified Videoconferencing 3511 MCU and Cisco Unified Videoconferencing 3540 MCU Module Releases, which are available at this URL:

http://www.cisco.com/en/US/products/hw/video/ps1870/prod_maintenance_guides_list.html

The Very Large Campus Clustering over the WAN deployment model consisted of these components:

3544 Cisco Unified Videoconferencing chassis

Cisco Unified Videoconferencing 3544 System 100-portMCU module

EMP3 board

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified Videoconferencing 3540 MCU Conference Bridge Configuration for IP Video Telephony

In addition, these components were tested in the Large Multi-SiteCentralized with SRST site model for EUEM:

3544 Cisco Unified Videoconferencing chassis

Cisco Unified Videoconferencing 3544 System 60-portMCU module

EMP3 board

3511 MCU with integrated EMP

The configuration of the 3511 is are similar to the 3540 MCU configuration that this section describes.

Half of the Cisco Unified Videoconferencing-3540-MC10AMCU ports were configured to register as a SCCP Cisco video conference bridge (Cisco UnifiedVideoconferencing-35xx)device and were registered with Cisco Unified CallManager. The remaining ports were deployed as H.323 video conference resources and registered to the gatekeeper cluster in the MCU zone.

When deployed in a Cisco Unified CallManager SCCP environment, the primary function of the Cisco Unified Videoconferencing MCU is to provide media processing for conferences. In this capacity, the Cisco Unified Videoconferencing MCU negotiates parameters with the terminals participating in a conference, and it provides media processing. Cisco Unified CallManager manages the call flow. Terminals use Cisco Unified CallManager processes to initiate conferences, and

Cisco Unified CallManager manages the allocation of Cisco Unified Videoconferencing MCU resources.

When deployed in an H.323 environment, the Cisco Unified Videoconferencing MCU manages its own resources and provides media processing. Calls are initiated using the processes that the Cisco Unified Videoconferencing MCU uses for H.323 terminals. In this scenario, you must configure Cisco Unified CallManager to communicate with an H.323 gatekeeper for inbound calls from the MCU. For outbound calls, you must configure in Cisco Unified CallManager an H.323 gateway with the MCU IP address as the device name. This arrangement allows SCCP terminals to participate in conferences that include other SCCP terminals, H.323 terminals, or terminals of both types.

The following tables show how the Cisco Unified Videoconferencing 3540 MCU was configured using the Cisco Unified Videoconferencing Administrator web page. Fields not shown in these tables were set to their default values.

Table 12-3—IP/VCBoard > Basics

Table 12-4—IP/VCBoard > Addressing

Table 12-5—IP/VCMCU > Settings > Basics

Table 12-6—IP/VCMCU > Protocols > H.323 Protocol Configuration

Table 12-7—IP/VCMCU > IP/VC MCU > Protocols > H.323Protocol Configuration > Advanced Gatekeeper Settings

Table 12-8—IP/VCMCU > Protocols > SCCP Protocol Configuration

 

 

 

 

Table 12-3

Cisco Unified Videoconferencing MCU Configuration: IP/VC Board > Basics

 

 

 

 

 

 

 

 

 

 

 

Field

 

Setting

 

 

 

 

 

 

 

 

 

 

 

Board name

 

MC10A

 

 

 

 

 

 

 

 

 

 

 

Location

 

Appropriate value

 

 

 

 

 

 

 

 

 

 

 

Serial number

 

Appropriate value

 

 

 

 

 

 

 

 

 

 

Hardware version

Appropriate value

 

 

 

 

 

 

 

 

 

 

 

Date/Time

 

Appropriate value

 

 

 

 

 

 

 

 

 

 

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12-10

 

 

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified Videoconferencing 3540 MCU Conference Bridge Configuration for IP Video Telephony

Table 12-3Cisco Unified Videoconferencing MCU Configuration: IP/VC Board > Basics

Field

 

Setting

 

 

 

Slot number

 

Appropriate value

 

 

Software version

4.2.10

 

 

 

Table 12-4

Cisco Unified Videoconferencing MCU Configuration: IP/VC Board > Addressing

 

 

 

Field

 

Setting

 

 

 

IP Address

 

Appropriate value

 

 

 

Subnet Mask

 

Appropriate value

 

 

 

Router IP

 

Appropriate value

 

 

 

DNS Suffix

 

XX.com

 

 

Preferred DNS server

Appropriate value

 

 

Alternate DNS server

Appropriate value

 

 

 

Port type

 

Ethernet-CSMA/CD

 

 

 

MAC Address

 

Appropriate value

 

 

 

Port settings

 

100/Mbps / Full Duplex

 

 

 

Port status

 

100/Mbps / Full Duplex

 

 

 

Table 12-5

Cisco Unified Videoconferencing MCU Configuration: IP/VC MCU > Settings > Basics

 

 

 

Field

 

Setting

 

 

 

MCU Mode

 

MCU

 

 

Number of SCCP ports

30

 

 

 

Table 12-6

Cisco Unified Videoconferencing MCU Configuration: IP/VC MCU > Protocols > H.323

 

Protocol Configuration

 

 

 

 

Field

 

Setting

 

 

Activate protocol settings

Checked

 

 

 

Description

 

H.323 Protocol Configuration

 

 

Registration Name

SJC-RFD-MCU-1

 

 

Gatekeeper Address

10.9.12.99

 

 

Gatekeeper Port

1719

 

 

Strip zone prefix

Unchecked

 

 

 

Enable H.329

 

Unchecked

 

 

Enable Fast Start

Unchecked

 

 

Enable generic audio capabilities

Unchecked

 

 

 

 

 

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Table 12-6Cisco Unified Videoconferencing MCU Configuration: IP/VC MCU > Protocols > H.323 Protocol Configuration (continued)

Field

Setting

 

 

Enable alternate Gatekeeper

Unchecked

 

 

Enable H.245 tunneling

Unchecked

 

 

Table 12-7Cisco Unified Videoconferencing MCU Configuration: IP/VC MCU > Protocols > H.323 Protocol Configuration > Advanced Gatekeeper Settings

Field

Setting

 

 

MCU Registration Mode

MCU

 

 

Note

The configuration shown in Table 12-7 directly affects gatekeeper call routing. If MCU Registration

 

Mode is not set to MCU and instead left at its default setting of Gateway, gatekeeper call routing may

 

not function in the Very Large Campus Clustering over the WAN deployment model.

.

 

 

 

Table 12-8

Cisco Unified Videoconferencing MCU Configuration: IP/VC MCU > Protocols > SCCP

 

 

 

Protocol Configuration

 

 

 

 

 

 

Field

 

Setting

 

 

 

 

TFTP Servers: IP Address / Port

Appropriate values

 

 

 

 

CallManagers: IP Address / Port

Appropriate values

 

 

 

 

Perform MCU reset on CallManager Reset

Checked

 

message

 

 

 

 

 

 

 

Local port base

 

11000

 

 

 

 

 

Priority

 

24

 

 

 

 

Registration: Retries

3

 

 

 

 

 

Initial timeout

 

30

 

 

 

 

Consequent timeout

10

 

 

 

 

Keep Alive: Retries

3

 

 

 

 

 

Timeout

 

10

 

 

 

 

 

Recovery mode

 

Not applicable

 

 

 

 

Change configuration locally

Unchecked

 

 

 

 

To create the Cisco Unified CallManager dedicated H.323 service on the MCU, information was copied from the existing default service prefix 87 named Continuous Presence (MP). The only change made to this default service prefix was to change the prefix to 25. This prefix must be used when configuring Cisco Unified CallManager route patterns, as described in the “Route Pattern Configuration for MCU Service” section on page 12-25 .

 

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Cisco Unified Videoconferencing Gateway Configuration for Video PSTN Gateway

Cisco Unified Videoconferencing Gateway Configuration for Video PSTN Gateway

This section provides information about configuring a Cisco Unified Videoconferencing gateway for a video PSTN gateway.

For related information, refer to this URL:

http://www.cisco.com/univercd/cc/td/doc/product/ipvc/ipvcgw/index.htm

The following tables show how the 2 PRI port version of the Cisco Unified Videoconferencing 3544 System Gateway module was configured using the Cisco Unified Videoconferencing Administrator web page. Fields not shown in these tables were set to their default values.

Table 12-9—IPVC/3540GW > Board > Basics

Table 12-10—IPVC/3540GW > Board > Addressing

Table 12-11—IPVC/3540GW > Settings > Basics

Table 12-12—IPVC/3540GW > Settings > IP Connectivity

Table 12-13—IIPVC/3540GW > Settings > Media Modes

Table 12-14—IIPVC/3540GW > Settings > Bonding

Table 12-15—IPVC/3540GW > Services > Voice

Table 12-16—IPVC/3540GW > Services > Video

Table 12-17—IPVC/3540GW > PRI > Port 1 Basics

Table 12-18—IPVC/3540GW > PRI Port 1 Physical Interface

 

 

Table 12-9

Cisco Unified Videoconferencing MCU Configuration: IPVC/3540 GW > Board >

 

 

 

Basics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Field

 

 

Setting

 

 

 

 

 

 

 

 

Model number

 

 

IPVC-3540-GW2P

 

 

 

 

 

 

 

 

Location

 

 

Appropriate value

 

 

 

 

 

 

 

 

Serial number

 

 

Appropriate value

 

 

 

 

 

 

 

Hardware version

 

Appropriate value

 

 

 

 

 

 

 

 

Date/Time

 

 

Appropriate value

 

 

 

 

 

 

 

 

Slot number

 

 

Appropriate value

 

 

 

 

 

 

 

 

 

 

 

Software version

 

4.0.40

 

 

 

 

 

 

 

 

 

 

 

Table 12-10

Cisco Unified Videoconferencing MCU Configuration: IPVC/3540 GW > Board >

 

 

 

Addressing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Field

 

 

Setting

 

 

 

 

 

 

 

 

IP Address

 

 

Appropriate value

 

 

 

 

 

 

 

 

Subnet Mask

 

 

Appropriate value

 

 

 

 

 

 

 

 

Router IP

 

 

Appropriate value

 

 

 

 

 

 

 

 

DNS server IP

 

 

Appropriate value

 

 

 

 

 

 

 

 

 

 

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified Videoconferencing Gateway Configuration for Video PSTN Gateway

Table 12-10

Cisco Unified Videoconferencing MCU Configuration: IPVC/3540 GW > Board >

 

Addressing (continued)

 

 

 

 

Field

 

Setting

 

 

Device DNS name

Appropriate value

 

 

 

Port type

 

Ethernet-CSMA/CD

 

 

 

MAC address

 

Appropriate value

 

 

 

Port settings

 

100/Mbps / Full Duplex

 

 

 

Port status

 

100/Mbps / Full Duplex

 

 

 

Table 12-11

Cisco Unified Videoconferencing MCU Configuration: IPVC/3540 GW > Settings >

 

Basics

 

 

 

 

Field

 

Setting

 

 

Gateway Identifier

Appropriate value

 

 

 

Table 12-12

Cisco Unified Videoconferencing MCU Configuration: IPVC/3540 GW > Settings >

 

IP Connectivity

 

 

 

 

Field

 

Setting

 

 

IP connectivity mode

Using gatekeeper

 

 

Specify gatekeeper address

Selected

 

 

Gatekeeper address

Appropriate value

 

 

Gatekeeper port

Appropriate value

 

 

Gateway registration mode

Version 2

 

 

 

Table 12-13

Cisco Unified Videoconferencing MCU Configuration: PVC/3540 GW > Settings >

 

Media Modes

 

 

 

 

Field

 

Setting

 

 

 

Enable G722

 

Checked

 

 

 

Enable G722.1

 

Unchecked

 

 

 

Enable G728

 

Checked

 

 

 

Enable H263

 

Checked

 

 

 

Enable H263+

 

Unchecked

 

 

 

Enable H264

 

Checked

 

 

 

Enable T120

 

Checked

 

 

 

Enable FECC

 

Checked

 

 

 

 

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Cisco Unified Videoconferencing Gateway Configuration for Video PSTN Gateway

 

Table 12-14

Cisco Unified Videoconferencing MCU Configuration: PVC/3540 GW > Settings >

 

 

Bonding

 

 

 

 

 

 

Field

 

Setting

 

 

 

 

 

Enable bonding

 

Checked

 

 

 

 

Maximum B channels for a bonded call

Appropriate value

 

 

 

 

For bonded calls, allow downspeeding down to x

Appropriate value

 

calls

 

 

.

 

 

 

Table 12-15

Cisco Unified Videoconferencing MCU Configuration: PVC/3540 GW > Services >

 

 

 

Voice

 

 

 

 

 

 

Field

 

Setting

 

 

 

 

 

Prefix

 

9

 

 

 

 

 

Description

 

Voice call

 

 

 

 

 

Call type

 

Voice

 

 

 

 

 

Bit rate

 

64

 

 

 

 

 

PRI port 1

 

Enabled

 

 

 

 

 

PRI port 2

 

Enabled

.

 

 

 

Table 12-16

Cisco Unified Videoconferencing MCU Configuration: PVC/3540 GW > Services >

 

 

 

Video

 

 

 

 

 

 

Field

 

Setting

 

 

 

 

 

Prefix

 

79

 

 

 

 

 

Description

 

Video call bonding 6*64

 

 

 

 

 

Call type

 

Voice

 

 

 

 

 

Bit rate

 

384

 

 

 

 

 

PRI port 1

 

Enabled

 

 

 

 

 

PRI port 2

 

Enabled

.

 

 

 

Table 12-17

Cisco Unified Videoconferencing MCU Configuration: PVC/3540 GW > PRI Port 1 >

 

 

 

Basics

 

 

 

 

 

 

Field

 

Setting

 

 

 

 

 

Port enable

 

Checked

 

 

 

 

Post phones number range

01917400000 to 01917400029

 

 

 

 

 

Local area

 

0191740

 

 

 

 

Strip Local Area Code

Checked

 

 

 

 

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

Table 12-18

Cisco Unified Videoconferencing MCU Configuration: PVC/3540 GW > PRI Port 1 >

 

Physical Interface

 

 

 

 

Field

 

Setting

 

 

 

Interface

 

E1/T1

 

 

 

Country

 

Appropriate value

 

 

 

Network access

 

Appropriate value

 

 

Signaling protocol

Appropriate value

 

 

 

Cisco Unified CallManager Configuration for IP Video Telephony

The following sections provide an overview of how Cisco Unified CallManager was configured for IP Video telephony testing. For additional information about how Cisco Unified CallManager was configured for Cisco IP Communications Release 5.1(1) testing, see Chapter 2, “Cisco Unified CallManager Configuration.”

Cisco Unified CallManager Configuration Overview, page 12-17

Region Configuration in Cisco Unified CallManager, page 12-17

Video Deployment with RSVP, page 12-21

Gatekeeper Configuration in Cisco Unified CallManager, page 12-23

MCU Configuration in Cisco Unified CallManager, page 12-23

Route Pattern Configuration for MCU Service, page 12-25

Cisco Unified Videoconferencing PSTN Gateway Configuration for Cisco Unified CallManager, page 12-25

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

Cisco Unified CallManager Configuration Overview

The following table provides an overview of how to configure Cisco Unified CallManager for IP Video telephony.

 

Procedure

Reference

Step 1

 

 

If you are not using a single Region for all call

Refer to the “Region Configuration” chapter

 

types, configure Regions.

in Cisco Unified CallManager Administration

 

 

Guide.

 

 

Refer to the “Call Admission Control”

 

 

chapter in Cisco Unified CallManager System

 

 

Guide.

Step 2

 

 

If you use locations for call admission control,

Refer to the “Location Configuration” chapter

 

configure locations for video call bandwidth.

in Cisco Unified CallManager Administration

 

 

Guide.

 

 

Refer to the “Call Admission Control”

 

 

chapter in Cisco Unified CallManager System

 

 

Guide.

Step 3

 

 

To use a Cisco video conference bridge, configure

Refer to the “Conference Bridge

 

the appropriate conference bridge for your

Configuration” chapter in

 

network.

Cisco Unified CallManager Administration

 

 

Guide.

Step 4

 

 

To configure a user to use the video conference

Refer to the “Media Resource Group

 

bridge instead of other conference bridges,

Configuration” chapter in

 

configure the media resource groups and media

Cisco Unified CallManager Administration

 

resource group lists for the user.

Guide.

 

 

Refer to the “Media Resource Group List

 

 

Configuration” chapter in

 

 

Cisco Unified CallManager Administration

 

 

Guide.

 

 

 

Region Configuration in Cisco Unified CallManager

This section provides an overview of how regions were configured in the Very Large Campus Clustering over the WAN deployment model. These configurations were made in Cisco Unified CallManager Administration.

For additional information about regions, refer to IP Video Telephony Solution Reference Network Design (SRND) for Cisco Unified CallManager. (Table 12-1 provides a link to this document.)

The total bitrate for the video bandwidth of the region should be set to accommodate the total bitrate of the video and audio RTP streams used in video calls.

Table 12-19 shows the regions matrix that was created in Cisco Unified CallManager.

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

Table 12-19

Regions Matrix

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

SIP

SJC-Local

Video

WAN

 

 

 

 

 

 

 

Default

 

G.711/384

G.711/None

G.711/384

G.711/384

G.711/384

 

 

 

 

 

 

 

SIP

 

G.711/None

G.711/None

G.711/None

G711/None

G.711/None

 

 

 

 

 

 

 

SJC-Local

 

G.711/384

G.711/None

G.711/384

G.711/384

G.729/384

 

 

 

 

 

 

 

Video

 

G.711/384

G.711/None

G.711/384

G.711/384

G.711/384

 

 

 

 

 

 

 

WAN

 

G.711/384

G.711/None

G.711/384

G.711/384

G.711/384

 

 

 

 

 

 

 

The following devices were assigned to the regions shown:

SJC-Localregion—Includesall phones without video capabilities, CTI ports, voice mail ports, conference bridges, transcoders, and PSTN gateways without video capabilities.

SIP region—IncludesSIP trunks to Cisco Unified CallManager 4.(x).

Video region—Toprovide the maximum level of interoperability and features, these video endpoints have been assigned to this region:

Cisco Unified Video Advantage associated with Cisco Unified IP Phone 7940G/7941G/7960G/7961G/ 7970G/7971G running SCCP.

Cisco Unified IP Phone 7985

Polycom H.323 video endpoints. (The Polycom VSX 7000 with firmware version 8.0.3 supports G.722, G.722.1, G.711, G.728, audio codecs.)

SCCP Tandberg T1000 video endpoints.

SCCP Tandberg MXP video endpoints.

H.323 Tandberg 990 MXP video endpoints

Cisco Unified Videoconferencing 3540 MCU SCCP Video Conference Bridge.

Cisco Unified Videoconferencing 3540 MCU H.323 Gateway.

WAN region—IncludesH.225 intercluster trunks and SIP trunks to other cluster.

Note For additional information about codecs support by endpoints, refer to the “Endpoints” section inIP Video Telephony Solution Reference Network Design (SRND) for

Cisco Unified CallManager. (Table 12-1 provides a link to this document.)

H.245 Capabilities Exchange with Intercluster Trunks

The codec specified for a region is the maximum codec that will be exchanged during an intercluster trunk call. For example, the Cisco Unified IP Phone 7960G supports G.729, G.711, and Cisco wideband audio codec. If audio codec between two regions is configured for G.711, Cisco Unified CallManager will advertise G.711 and G.729, not G.711 only. If audio codec between two regions is configured for G.729, Cisco Unified CallManager will advertise only G.729 because the phone does not support a lower bandwidth codec.

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

SIP Trunk Calls with Asymmetric Regions

This section provides an overview of two asymmetric regions scenarios for intercluster calls across SIP trunks.

Scenario 1—Devicewith an associated Cisco Unified Video Advantage in Region A calls a device in Region D through an intercluster trunk

In this scenario, a call proceeds as follows:

Region A – SJC Cisco Unified CallManager – Region B – SIP trunk – Region C – DFW

Cisco Unified CallManager – Region D

The regions include the following devices:

Region A (Video)—Allvideo enabled phones, including Cisco Unified Video Advantage

Region B (SJC-WAN)—Allintercluster trunks

Region C (DFW-WAN)—Allintercluster trunks

Region D (SJC-Local)—Alldevices without video capabilities

Table 12-20 shows the regions matrix for SJC.

Table 12-20

SJC Regions Matrix

 

 

 

 

 

 

 

Region A

Region B

 

 

 

 

Region A

 

G.711/384

G.711/384

 

 

 

 

Region B

 

G.711/384

G.729/384

 

 

 

 

Table 12-21 shows the regions matrix for DFW.

Table 12-21

DFW Regions Matrix

 

 

 

 

 

 

 

Region C

Region D

 

 

 

 

Region C

 

G.729/384

G.729/384

 

 

 

 

Region D

 

G.729/384

G.711/384

 

 

 

 

When a device with an associated Cisco Unified Video Advantage in Region A calls through an intercluster trunk in Region B, G.729 and G.711 codecs are sent from SJC to DFW during the capabilities exchange process.

The call will arrive at DFW through an intercluster trunk in Region C and will then be routed to a device in Region D. Only the G.729 codec will be sent from DFW to SJC during the capabilities exchange process.

After the capabilities exchange process completes, the call will connect using the G.729 codec.

Scenario 2—H.323video endpoint with only G.711 capabilities in Region A calls a device in Region E through an SIP trunk

In this scenario, a call proceeds as follows:

Region A – SJC Cisco Unified CallManager – Region B – Transcoder – Region C – Intercluster trunk – Region D – DFW Cisco Unified CallManager – Region E

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

The regions include the following devices:

Region A (Video)—Allvideo enabled phones, including Cisco Unified Video Advantage

Region B (SJC-Local)—Alldevices without video capabilities

Region C (SJC-WAN)—Allintercluster trunks

Region D (DFW-WAN)—Allintercluster trunks

Region E (DFW-Local)—Alldevices without video capabilities

Table 12-22 shows the regions matrix for SJC.

Table 12-22

SJC Regions Matrix

 

 

 

 

 

 

 

 

 

Region A

Region B

Region C

 

 

 

 

 

Region A

 

G.711/384

G.711/384

G.711/384

 

 

 

 

 

Region B

 

G.711/384

G.711/384

G.729/384

 

 

 

 

 

Region C

 

G.711/384

G.729/384

G.729/384

 

 

 

 

 

Table 12-23 shows the regions matrix for DFW.

Table 12-23

DFW Regions Matrix

 

 

 

 

 

 

 

Region D

Region E

 

 

 

 

Region D

 

G.729/384

G.729/384

 

 

 

 

Region E

 

G.729/384

G.711/384

 

 

 

 

When an H.323 video endpoint in Region A calls through an intercluster trunk in Region B, only the G.711 codec is sent from SJC to DFW during the capabilities exchange process.

The call will arrive at DFW through an intercluster trunk in Region C and will then be routed to a device in Region D. Only the G.729 codec will be sent from DFW to SJC during the capabilities exchange process.

After the capabilities exchange process completes, the call will connect using the G.729 codec.

The Cisco Unified CallManager at SJC will invoke a transcoder between the H.323 video device and the intercluster trunk. The transcoder will transcode the call between the G.729 and the G.711 codecs.

Transcoders and Call Transfer

This section provides an overview of a call-transferscenario that involves a legacy transcoder.

Note Cisco legacy transcoders (6608, CMM ACT,NM-HDV)currently do not support videopass-through.If a video call is sent through a transcoder, the call will become anaudio-onlycall.

Before the call is transferred in this scenario, it proceeds as described for Scenario 2 in the “SIP Trunk Calls with Asymmetric Regions” section on page 12-19 .That is, an H.323 video endpoint with only G.711 capabilities in Region A calls a device in Region E through an intercluster trunk.

After the call is established, it is transferred by the device in Region E to a local video endpoint in Region F In this call-forwardscenario, the call proceeds as follows:

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

Region A – SJC Cisco Unified CallManager – Region B – Transcoder – Region C – Intercluster trunk – Region D – transcoder – Region E – DFW Cisco Unified CallManager – Region F

The regions include the following devices:

Region A (SJC-Video)—Allvideo enabled phones, including Cisco Unified Video Advantage

Region B (SJC-Local)—Alldevices without video capabilities

Region C (SJC-WAN)—Allintercluster trunks

Region D (DFW-WAN)—Allintercluster trunks

Region E (DFW-Local)—Alldevices without video capabilities

Region F (DFW-Video)—Allvideo enabled phones, including Cisco Unified Video AdvantageTable 12-24 shows the regions matrix for SJC.

Table 12-24

SJC Regions Matrix

 

 

 

 

 

 

 

 

 

Region A

Region B

Region C

 

 

 

 

 

Region A

 

G.711/384

G.711/384

G.711/384

 

 

 

 

 

Region B

 

G.711/384

G.711/384

G.729/384

 

 

 

 

 

Region C

 

G.711/384

G.729/384

G.729/384

 

 

 

 

 

Table 12-25 shows the regions matrix for DFW.

Table 12-25

DFW Regions Matrix

 

 

 

 

 

 

 

 

 

Region D

Region E

Region F

 

 

 

 

 

Region D

 

G.729/384

G.729/384

G.711/384

 

 

 

 

 

Region E

 

G.729/384

G.711/384

G.711/384

 

 

 

 

 

Region F

 

G.711/384

G.711/384

G.711/384

 

 

 

 

 

If the H.323 video endpoint in SJC called directly to an H.323 video endpoint in DFW, a transcoder would not be invoked and video would be available for the call. However, in this scenario, a transcoder is invoked before the call is transferred. Therefore, video is not available after the call transferred.

Note This transfer scenario applies to all calls transferred via Cisco Unity Automated Attendant and via Cisco IPCC Express.

Video Deployment with RSVP

You can use Cisco RSVP Agent to control video bandwidth. Such a deployment could be use in a situation where an audio device can use only G.711 and audio transcoding is necessary.

Cisco RSVP Agent is an IOS-basedRSVP proxy with an SCCP interface and is the only method for performing audio transforming of a video call. Cisco RSVP Agent registers to Cisco Unified CallManager through SCCP as an MTP or transcoder. Video endpoints do not need to support RSVP, but they do need to be allocated a media resource group that contains a Cisco RSVP agent. When RSVP or audio transcoding is required, Cisco Unified CallManager inserts a Cisco RSVP Agent in the call to perform RSVP reservation or transcoding.

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

In addition to Cisco RSVP Agent, you can use Cisco Unified CallManager region and location settings to establish video bandwidth for a call. However, with the introduction of RSVP agent in video call, the following rule is required to establish the bandwidth for a video call:

end-to-endvideo region = minimum of (region (A,agentA), region(agentA,agentB), region(agentB,B) and region(A,B) )

Figure 12-3 shows a basic video deployment using Cisco RSVP Agent.

Figure 12-3Basic Video Deployment with Cisco RSVP Agent

Cisco Unified CallManager

Location A

Location B

Cisco RSVP

Cisco RSVP

Agent A

Agent B

 

RSVP/RTP

SCCP

H.323

SIP

Phone

Video

Phone

 

Phone

 

SCCP

SIP

RTP

H.323

SIP H.323

Phone Video

Phone

SCCP

Phone

155487

The following configuration was used for the Cisco RSVP Agent. The codec pass-throughallows the audio transcoding of a video call:

dspfarm profile 2 transcode codec pass-through

codec gsmfr codec g729ar8 codec g729abr8 codec g711ulaw codec g711alaw rsvp

maximum sessions 8 associate application SCCP

The following command confirms that the Cisco RSVP Agent is configured properly:

SCCP Admin State: UP

User Masked Codec list: None

Call Manager: 10.10.110.11, Port Number: 2000

 

 

 

 

Priority: 1, Version: 5.0.1, Identifier: 1

 

 

 

Transcoding Oper

State: ACTIVE - Cause Code: NONE

 

 

 

Active Call Manager: 10.10.110.11, Port Number: 2000

 

 

 

TCP Link Status: CONNECTED, Profile Identifier: 2

 

 

 

Reported Max Streams: 16, Reported Max OOS Streams: 0

 

 

 

Supported Codec: pass-thru,Maximum Packetization Period: N/A

 

 

 

Supported Codec: gsmfr, Maximum Packetization Period: 20

 

 

 

Supported Codec: g729ar8, Maximum Packetization Period: 60

 

 

 

Supported Codec: g729abr8, Maximum Packetization Period: 60

 

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

Supported Codec: g711ulaw, Maximum Packetization Period: 30

Supported Codec: g711alaw, Maximum Packetization Period: 30

RSVP : ENABLED

Gatekeeper Configuration in Cisco Unified CallManager

This section describes how gatekeepers were configured for video endpoints in Cisco Unified

CallManager Administration.

For additional information, refer to the “Gatekeeper Configuration” chapter in Cisco Unified

CallManager Administration Guide.

To access the Cisco Unified CallManager Administration web pages for adding and configuring gatekeepers, choose Device > Gatekeeper from the Cisco Unified CallManager Administration application.

Table 12-26 shows how one of the gatekeepers was configured in the Very Large Campus Clustering over the WAN deployment model.

Table 12-26

Gatekeeper Configuration

 

 

 

 

Field

 

Setting

 

 

Host Name/IP Address

Host Name/IP Address1

Description

 

SJC-RFD-GK-1

 

 

Registration Request Time To Live

60

 

 

Registration Retry Timeout

300

 

 

 

Enable Device

 

Checked

 

 

 

1. Only the primary gatekeeper address in a cluster is required.

MCU Configuration in Cisco Unified CallManager

The following sections describe how Cisco Unified CallManager was configured with the Cisco Unified Videoconferencing 3540 MCU. This MCU registers with Cisco Unified CallManager as a video conference bridge. It also functions as a stand-aloneH.323 video conferencing resource.

SCCP Video Conference Bridge

H.323 Video Conference Bridge

For additional information, refer to the “Conference Bridges” chapter in Cisco Unified CallManager System Guide. (Table 12-1 provides a link to this document.)

SCCP Video Conference Bridge

To access the Cisco Unified CallManager Administration web pages for adding and configuring video endpoints, choose Media Resources > Conference Bridge from the Cisco Unified CallManager Administration application.

Table 12-27 shows how the video conference bridge was configured in the Very Large Campus Clustering over the WAN deployment model. Fields not shown in this table were set to their default values.

 

 

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Chapter 12 IP Video Telephony Configuration

Cisco Unified CallManager Configuration for IP Video Telephony

Table 12-27

MCU SCCP Video Conference Bridge Configuration

 

 

 

Field

 

Setting

 

 

Conference Bridge Type

Cisco Video Conference Bridge (Cisco Unified

 

 

Videoconferencing-35xx)

 

 

 

MAC Address

 

0003D60028CE

 

 

 

Description

 

VCB0003D60028CE

 

 

 

Device Pool

 

DP-Video

 

 

 

Location

 

SJC

 

 

 

After this video conference bridge was added to Cisco Unified CallManager, it was added to a media resource group. This media resource group was then added to a media resource group list, which was assigned to all video-enabledphones.

For additional information, refer to the “Media Resource Management” chapter in Cisco Unified CallManager System Guide. (Table 12-1 provides a link to this document.)

H.323 Video Conference Bridge

An H.323 gateway was created to allow Cisco Unified CallManager to route calls to the H.323 video conference bridge.

To access the Cisco Unified CallManager Administration web pages for adding and configuring gateways, choose Device > Gateway from the Cisco Unified CallManager Administration application.

Table 12-28 shows how the MCU H.323 gateway was configured in the Very Large Campus Clustering over the WAN deployment model Fields not shown in this table were set to their default values.

 

 

 

 

Table 12-28

MCU H.323 Gateway Configuration

 

 

 

 

 

 

 

 

 

 

 

Field

 

Setting

 

 

 

 

 

 

 

 

 

 

 

 

Device Name

 

10.9.14.14

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

SJC-RFD-MCU-1

 

 

 

 

 

 

 

 

 

 

 

Device Pool

 

DP-Video

 

 

 

 

 

 

 

 

 

 

Call Classification

OnNet

 

 

 

 

 

 

 

 

 

 

Media Resource Group List

MRGL_SJC_VIDEO

 

 

 

 

 

 

 

 

 

 

 

Location

 

SJC

 

 

 

 

 

 

 

 

 

 

 

AAR Group

 

SJC

 

 

 

 

 

 

 

 

 

 

 

 

Signaling Port

 

2720

 

 

 

 

 

 

 

 

 

 

 

Media Termination Point Required

Unchecked

 

 

 

 

 

 

 

 

 

 

Retry Video Call as Audio

Checked

 

 

 

 

 

 

 

 

 

 

Wait for Far End H.245 Terminal Capability Set

Checked

 

 

 

 

 

 

 

 

 

 

Multilevel Precedence and Preemption (MLPP)

Not applicable

 

 

 

 

Information

 

 

 

 

 

 

 

 

 

 

 

 

 

Significant Digits

All

 

 

 

 

 

 

 

 

 

 

Calling Search Space

SJC_CSS

 

 

 

 

 

 

 

 

 

 

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Chapter 12 IP Video Telephony Configuration

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Table 12-28

MCU H.323 Gateway Configuration (continued)

 

 

 

Field

 

Setting

 

 

AAR Calling Search Space

SJC_CSS

 

 

 

Prefix DN

 

blank

 

 

Redirecting Number IE Delivery – Inbound

Uncheked

 

 

Enable Inbound FastStart

Uncheked

 

 

 

Route Pattern Configuration for MCU Service

Cisco Unified CallManager routes outbound calls to the MCU via this H.323 gateway utilizing a route pattern. In Very Large Campus Clustering over the WAN deployment model this route pattern was 21XXX.

Note The route pattern must begin with the same digits as the service prefix configured on the Cisco Unified Videoconferencing 3540 MCU.

Cisco Unified Videoconferencing PSTN Gateway Configuration for Cisco Unified CallManager

These sections describe how the PSTN gateway was configured for Cisco Unified Videoconferencing:

Video PSTN Gateway, page 12-25

Route Pattern Configuration for Cisco Unified Videoconferencing PSTN Gateways, page 12-26

Video PSTN Gateway

A Cisco Unified Videoconferencing gateway registers as a gateway on Cisco Unified CallManager, and it uses a specific signaling port. Table 12-29 lists the signaling port for each type of MCU and gateway.

Note If you want to use the 1720 standard value for the signaling port on Cisco Call Manager configuration, you can change this value for Cisco Unified Videoconferencing devices.

Table 12-29

Cisco Unified Videoconferencing MCU and Gateway Signaling Ports

 

 

MCU and Gateway Type

Default Signaling Port

 

 

 

3540

 

1820

 

 

 

3526

 

1820

 

 

 

3521

 

1920

 

 

 

3511

 

2720

 

 

 

 

 

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Video Endpoints Configuration

Note By default, Cisco Unified CallManager waits for and endpoint to sent its capability before

Cisco Unified CallManager sends a Terminal Capability Set. However, calls from Cisco Unified Video Advantage to an H.323 device require Cisco Unified Call Manager to send its capability immediately, without waiting for the destination endpoint to send its capability first. Otherwise, calls may fails due to capability negotiation issues.

To avoid this situation, uncheck the Wait for Far End H.245 Terminal Capability Set parameter in the configurations for Cisco Unified Video Conferencing and for H.323 clients.

Route Pattern Configuration for Cisco Unified Videoconferencing PSTN Gateways

Cisco Unified CallManager routes outbound calls to the Cisco Unified Videoconferencing PSTN gateway via a H.323 gateway utilizing a route pattern. In the Very Large Campus Clustering over the WAN deployment model this route pattern was 79XXX.

Note The route pattern must begin with the same digits as the service prefix configured on the Cisco Unified Videoconferencing 3540 PSTN gateway

The Cisco Unified Videoconferencing gateway registers with a prefix followed by the #. Cisco Unified CallManager was configured with a route pattern that sends all outgoing video PSTN calls to the Cisco Unified Videoconferencing gateway and that inserts the # after the Video PSTN prefix. This route pattern is in a partition that can be reached only by video endpoints. Video endpoint will use the Cisco Unified Videoconferencing gateway for audio and video PSTN calls.

For example, assume that a user dials 79 as the PSTN prefix and that the required route pattern is 79.XXXXXXXXXX.

To create this route pattern, Called Party Transformation was applied with the following settings:

Discard Digits: PreDot

Prefix Digits (outgoing calls): 79#

In this case, when a user dials 790123456789, Cisco Unified CallManager sends an H.225 Setup message to the Cisco Unified Videoconferencing gateway with a called number of 79#0123456789.

Video Endpoints Configuration

The following sections describes how Cisco Unified CallManager was configured for Tandberg endpoints:

Phone Configuration for Tandberg SCCP Video Endpoints, page 12-27

Phone Configuration for Gatekeeper-Controlled H.323 Video Endpoints, page 12-27

Phone Configuration for Non-Gatekeeper-Controlled H.323 Video Endpoints, page 12-28

Phone Configuration for SCCP Video Endpoints with Associated Cisco Unified Video Advantage, page 12-30

For additional information about how Cisco Unified CallManager was configured for the Very Large Campus with Clustering over the WAN site model, see Chapter 2, “Cisco Unified CallManager Configuration.”

 

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Chapter 12 IP Video Telephony Configuration

Video Endpoints Configuration

For additional information about adding and configuring phones and endpoints in Cisco Unified CallManager, refer to the “Cisco Unified IP Phone Configuration” chapter in

Cisco Unified CallManager Administration Guide.

Phone Configuration for Tandberg SCCP Video Endpoints

To access the Cisco Unified CallManager Administration web pages for adding and configuring video endpoints, choose Device > Phone from the Cisco Unified CallManager Administration application.

TANDBERG Video Endpoint will appear as a phone device type in Cisco Unified CallManager Administration only if you first install the Tandberg Cisco Unified CallManager Plug-inon the publisher node in the cluster. For information about accessing and installing this patch, see your Tandberg documentation.

One Tandberg SCCP video endpoint was configured for the Very Large Campus Clustering over the WAN deployment model. Table 12-30 shows how this device was configured. Field not shown in shown in this table were set to their default values.

Table 12-30

Phone Configuration for Tandberg SCCP Video Endpoint

 

 

 

Field

 

Setting

 

 

 

MAC Address

 

00506000FAD6

 

 

 

Description

 

SJC Tandberg-1

 

 

 

Owner User ID

 

blank

 

 

 

Device Pool

 

DP-Video

 

 

Calling Search Space

SJC_CSS

 

 

 

Phone Configuration for Gatekeeper-ControlledH.323 Video Endpoints

To access the Cisco Unified CallManager Administration web pages for adding and configuring video endpoints, choose Device > Phone from the Cisco Unified CallManager Administration application.

The video endpoints were entered in Cisco Unified CallManager Administration as an H.323 client device model type.

Table 12-31 shows how one of these devices was configured. Fields not shown in this table were set to their default values.

Note Allgatekeeper-controlledH.323 endpoints that are assigned to the same device pool and Cisco Unified CallManager group must be configured with the same zone setting.

 

 

Table 12-31

Phone Configuration for Gatekeeper-ControlledH.323 Video Endpoint

 

 

 

 

 

 

 

 

Field

 

 

Setting

 

 

 

 

 

 

 

 

Device Name

 

 

SJC-TBERG-2

 

 

 

 

 

 

 

 

Description

 

 

SJC Tandberg-2

 

 

 

 

 

 

 

 

Device Pool

 

 

DP-Video

 

 

 

 

 

 

 

Common Phone Profile

 

Standard Common Phone Profile

 

 

 

 

 

 

 

 

 

 

 

 

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Table 12-31

Phone Configuration for Gatekeeper-ControlledH.323 Video Endpoint (continued)

 

 

 

Field

 

Setting

 

 

Calling Search Space

SJC_CSS

 

 

AAR Calling Search Space

SJC_css

 

 

Media Resource Group List

MRGL_SJC_Video

 

 

 

Location

 

SJC

 

 

 

Signaling Port

 

1720

 

 

 

Owner User ID

 

51002

 

 

Retry Video Call as Audio

Checked

 

 

Wait for Far End H.245 Terminal Capability Set

Checked

 

 

Ignore Presentation Indicators (internal calls only)

Unchecked

 

 

Protocol Specific Information

 

 

 

 

SRTP Allowed

 

Unchecked

 

 

MTP Preferred Originating Codec

No applicable

 

 

SUBSCRIBE Calling Search Space

<None>

 

 

Media Termination Point Required

Unchecked

 

 

Unattended Port

Unchecked

 

 

H.323 Information

 

 

 

Outgoing Caller ID Pattern

blank

 

 

Calling Party Selection

Originator

 

 

Display IE Delivery

Checked

 

 

Redirecting Number IE Delivery Outbound

Unchecked

 

 

Redirecting Number IE Delivery Inbound

Unchecked

 

 

Gatekeeper Information

 

 

 

Gatekeeper Name

10.4.100.5

 

 

 

E.164

 

2600as1

 

 

Technology Prefix

1#*

 

 

 

Zone

 

SJC-VIDEO-GK1

 

 

MLPP Information

 

 

 

 

MLPP Domain

 

<None>

 

 

Secure Shell Information

 

 

 

Secure Shell User

blank

 

 

Secure Shell Password

blank

 

 

 

Phone Configuration for Non-Gatekeeper-ControlledH.323 Video Endpoints

To access the Cisco Unified CallManager Administration web pages for adding and configuring video endpoints, choose Device > Phone from the Cisco Unified CallManager Administration application.

 

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Video Endpoints Configuration

This video endpoints were entered in Cisco Unified CallManager Administration as an H.323 client device model type.

Table 12-32 shows how this device was configured. Fields not shown in this table were set to their default values.

 

 

Table 12-32

Phone Configuration for Non-Gatekeeper-ControlledH.323 Video Endpoint

 

 

 

 

 

 

 

Field

 

Setting

 

 

 

 

 

 

 

Device Name

 

IP address of the H.323 endpoint

 

 

 

 

 

 

 

Description

 

SJC Tandberg-2

 

 

 

 

 

 

 

Device Pool

 

DP-Video

 

 

 

 

 

 

Common Phone Profile

Standard Common Phone Profile

 

 

 

 

 

 

Calling Search Space

SJC_CSS

 

 

 

 

 

 

AAR Calling Search Space

SJC_css

 

 

 

 

 

 

Media Resource Group List

MRGL_SJC_Video

 

 

 

 

 

 

 

Location

 

SJC

 

 

 

 

 

 

 

 

 

 

 

Signaling Port

 

1720

 

 

 

 

 

 

 

 

 

 

 

Owner User ID

 

blank

 

 

 

 

 

 

Retry Video Call as Audio

Checked

 

 

 

 

 

 

Wait for Far End H.245 Terminal Capability Set

Checked

 

 

 

 

 

 

Ignore Presentation Indicators (internal calls only)

Unchecked

 

 

 

 

 

 

 

 

 

 

Protocol Specific Information

 

 

 

 

 

 

 

 

 

 

 

 

SRTP Allowed

 

Unchecked

 

 

 

 

 

 

MTP Preferred Originating Codec

No applicable

 

 

 

 

 

 

SUBSCRIBE Calling Search Space

<None>

 

 

 

 

 

 

Media Termination Point Required

Unchecked

 

 

 

 

 

 

Unattended Port

Unchecked

 

 

 

 

 

 

 

 

 

 

H.323 Information

 

 

 

 

 

 

 

 

 

 

 

Outgoing Caller ID Pattern

blank

 

 

 

 

 

 

Calling Party Selection

Originator

 

 

 

 

 

 

Display IE Delivery

Checked

 

 

 

 

 

 

Redirecting Number IE Delivery Outbound

Unchecked

 

 

 

 

 

 

Redirecting Number IE Delivery Inbound

Unchecked

 

 

 

 

 

 

 

 

 

 

Gatekeeper Information

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gatekeeper Name

10.4.100.5

 

 

 

 

 

 

 

 

 

 

 

E.164

 

2600as1

 

 

 

 

 

 

 

 

 

 

Technology Prefix

1#*

 

 

 

 

 

 

 

 

 

 

 

Zone

 

SJC-VIDEO-GK1

 

 

 

 

 

 

 

 

 

 

MLPP Information

 

 

 

 

 

 

 

 

 

 

 

 

MLPP Domain

 

<None>

 

 

 

 

 

 

 

 

 

 

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Video Endpoints Configuration

Table 12-32Phone Configuration forNon-Gatekeeper-ControlledH.323 Video Endpoint

Field

Setting

 

 

Secure Shell Information

 

 

 

Secure Shell User

blank

 

 

Secure Shell Password

blank

 

 

Phone Configuration for SCCP Video Endpoints with Associated Cisco Unified Video Advantage

Cisco Unified Video Advantage clients were installed and configured for the Very Large Campus with Clustering over the WAN site model and for the Large SIP Site deployment model. These Cisco Unified Video Advantage clients were installed on a mix of phone models, including the Cisco IP Phone 7940G/7941G/7960G/7961G/7970G/7971G.

Note Cisco Unified VT Advantage version 1.0(2) is supported only on SSCP phones.

For additional information about installing Cisco CT Advantage and configuring Video endpoints in Cisco Unified CallManager, refer to the following documents. (Table 12-1 provides links to these documents.)

“Understanding Video Telephony” chapter in Cisco Unified CallManager System Guide

Cisco Unified Video Advantage Administration Guide

To configure a phone with an associated Cisco Unified Video Advantage, choose Device > Phone from Cisco Unified CallManager Administration.

Table 12-33 shows how this device was configured. Fields not shown in this table were set to their default values.

Table 12-33Phone Configuration forNon-Gatekeeper-ControlledH.323 Video Endpoint

Field

Setting

 

 

Video Capabilities

Enabled

 

 

 

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