Dialogic Vision CX Video Administration Manual

Dialogic® Vision™ CX Video Gateway Administration Manual

December 2009 64-0403-02

www.dialogic.com

Copyright © 2008-2009 Dialogic Corporation. All Rights Reserved. You may not reproduce this document in whole or in part without permission in writing from Dialogic Corporation at the address provided below.

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Revision history

Revision Release date Notes

64-0403-02 Rev B December 2009 BK, Dialogic® Vision™ CX Video Gateway 4.2 and Dialogic®

64-0403-02 Rev A August 2009 BK, Dialogic® Vision™ CX Video Gateway 4.2 and Dialogic®

64-0403-01 Rev A June 2009 DEH/BK, Dialogic® Vision™ CX Video Gateway 4.1 and

Last modified: November 12, 2009 Refer to www.dialogic.com for product updates and for information about support policies, warranty

information, and service offerings.

Vision™ VX Integrated Media Platform 4.2.

Dialogic® Vision™ VX Integrated Media Platform 4.1.

Table Of Contents

Chapter 1: Introduction .................................................................................9

Chapter 2: Overview of the CX Video Gateway.............................................11

CX Video Gateway overview.........................................................................11

Signaling protocols and models..................................................................12

Media capabilities ....................................................................................13

CCXML scripting engine............................................................................13

SNMP agent and subagents.......................................................................14

Fast call setup.........................................................................................14

ISDN models .............................................................................................15

ISDN audio model ...................................................................................15

ISDN video model....................................................................................15

ISUP models..............................................................................................16

Basic ISUP audio model............................................................................16

Basic ISUP video model............................................................................17

ISUP scalable deployment model ...............................................................18

ISUP redundant deployment model ............................................................19

Models with Video Transcoders.....................................................................20

Video Transcoder interconnect...................................................................20

Video model with a single Video Transcoder ................................................20

Video model with multiple Video Transcoders...............................................21

Video model with gateways sharing Video Transcoders..................................21

Video model with co-located Video Transcoder.............................................21

Standards .................................................................................................22

Document conventions................................................................................23

Related documentation ...............................................................................24

Chapter 3: Configuring the CX Video Gateway .............................................25

Overview of configuring the CX Video Gateway...............................................25

Gathering information.................................................................................26

Network configuration information (all models)............................................26

ISDN configuration information (ISDN models) ............................................26

ISUP configuration information (ISUP models).............................................27

Signaling Server configuration information (ISUP models) .............................29

Video Transcoder configuration information.................................................30

Logging into the gateway for the first time.....................................................31

Configuring the gateway to use a static IP address.......................................31

Obtaining an IP address through DHCP.......................................................32

Accessing the Vision Console........................................................................33

Creating or revising a configuration...............................................................34

Additional configuration tasks....................................................................35

Backing up a configuration...........................................................................36

Restoring a configuration.............................................................................37

Accessing the gateway using a secure shell....................................................38

Chapter 4: Vision™ Console parameters.......................................................39

Configuration menu parameters ...................................................................39

Overview................................................................................................39

Date and Time ........................................................................................40

Host IP information..................................................................................41

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Introduction Dialogic® Vision™ CX Video Gateway Administration Manual

Resource configuration.............................................................................42

SIP/RTP parameters................................................................................. 43

Mobile video parameters...........................................................................44

Trunks...................................................................................................45

PSTN .....................................................................................................47

Signaling Server......................................................................................49

Options..................................................................................................52

Port upgrade...........................................................................................52

Video Transcoder.....................................................................................52

Import/Export configuration......................................................................52

Operations menu parameters.......................................................................53

Services.................................................................................................53

Maintenance...........................................................................................55

Provisioning menu parameters .....................................................................56

Call routing table.....................................................................................56

CCXML application configuration................................................................56

Video transcoder resource configuration......................................................56

Monitoring menu parameters .......................................................................57

Trunks page ...........................................................................................58

CCXML statistics......................................................................................58

Call Server status....................................................................................59

Signaling Monitor ....................................................................................60

Video Transcoder status ...........................................................................61

Chapter 5: Creating routes...........................................................................63

Overview of creating routes.........................................................................63

Understanding the gateway routing table.......................................................64

Routing table fields..................................................................................64

Routing table rules ..................................................................................65

Using the gateway routing table...................................................................66

Adding a routing rule ...............................................................................66

Modifying a routing rule............................................................................ 67

Deleting a routing rule .............................................................................67

Reordering routing rules...........................................................................67

Routing table expressions............................................................................68

Pattern matching expressions....................................................................68

Pattern generation expressions..................................................................69

Routing to a specific trunk group..................................................................70

Routing clear channel data ..........................................................................71

Chapter 6: Gateway routing table examples ................................................73

Routing table examples overview..................................................................73

PSTN to SIP pass-through to a single SIP destination ......................................74

Routing PSTN to SIP based on called number .................................................75

Stripping unwanted leading digits in both directions ........................................76

Converting PSTN numbers for country code....................................................77

Extracting numbers from incoming SIP numbers.............................................78

Transferring to PSTN and SIP destinations .....................................................79

Blacklisting a caller.....................................................................................80

Chapter 7: Managing the CX Video Gateway ................................................81

Working with gateway services.....................................................................81

Viewing gateway information .......................................................................82

6 Dialogic

Dialogic® Vision™ CX Video Gateway Administration Manual Introduction

Viewing gateway route information ............................................................82

Viewing CCXML statistics ..........................................................................82

Viewing trunk and circuit status information................................................83

Setting up gateway logging .........................................................................84

Logging levels.........................................................................................84

Logging defaults......................................................................................85

Changing the logging level........................................................................85

Changing other logging defaults ................................................................85

Log file format ........................................................................................85

Managing CCXML applications ......................................................................87

Adding a CCXML application definition to the Vision Console ..........................87

Removing a CCXML application definition from the Vision Console...................90

Modifying a CCXML application definition.....................................................90

CCXML application definition pattern matching syntax...................................91

Using call detail records ..............................................................................92

CDR entry format ....................................................................................92

CDR abbreviations...................................................................................93

Managing video transcoder resources............................................................94

Configuring a video transcoder system .......................................................94

Defining video transcoder resources for the CX Video Gateway.......................95

Specifying video transcoding in a call leg ....................................................96

Video transcoder logging ..........................................................................96

Video call completion to voice service............................................................98

Call logic................................................................................................98

Using the service.....................................................................................99

Adding the gateway.ccxml application ........................................................99

Enabling the Call Server for early media .....................................................99

Creating a gateway routing table entry.....................................................100

Examples for VCCV................................................................................101

Configuring streaming-only media server applications....................................102

Chapter 8: SIP interface ............................................................................103

Overview of the SIP interface.....................................................................103

Interoperability........................................................................................104

Inbound calls...........................................................................................105

Outbound calls.........................................................................................106

ISUP to SIP cause values...........................................................................107

SIP to ISUP cause values...........................................................................109

Chapter 9: Fine tuning the CX Video Gateway configuration......................111

Overview of fine tuning the gateway configuration ........................................111

Fine tuning the media board configuration ...................................................112

oamsys.cfg file......................................................................................112

Media board configuration files................................................................113

Fine tuning the telecom configuration..........................................................116

Settings for all models............................................................................116

Setting for ISDN models.........................................................................120

Settings for the ISUP models with Vision™ Signaling Servers.......................121

Settings for ISUP models that use native ISUP signaling..............................122

Fine tuning the H.100 clocking configuration ................................................123

Default H.100 clocking configuration ........................................................123

H.100 clock manager configuration file ..................................................... 124

Changing the default H.100 clocking configuration......................................125

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Introduction Dialogic® Vision™ CX Video Gateway Administration Manual

Fine tuning gateway routing.......................................................................126

Creating a new gateway application for routing..........................................126

Creating a custom application for routing..................................................126

Chapter 10: Glossary................................................................................129

8 Dialogic

The Dialogic® Vision™ CX Video Gateway Administration Manual describes how to configure and manage the Dialogic CX Video Gateway in this manual).

For information about installing the Dialogic relevant hardware installation manual (listed in Related documentation on page

The term Vision™ Server is used in this manual to refer to both the CX Video Gateway and the VX Integrated Media Platform collectively.

Note: Products to which this document pertains are part of the NMS Communications Platforms business that was sold by NMS Communications Corporation (“NMS”) to Dialogic Corporation (“Dialogic”) on December 8, 2008. Accordingly, certain terminology relating to the products has been changed. Below is a table indicating terminology that was formerly associated with the products, as well as the new terminology by which the products are now known.

Former terminology Current terminology

Vision CX Gateway Dialogic® Vision™ CX Video Gateway Vision VoiceXML Server Dialogic® Vision™ VX Integrated Media Platform

Introduction

Vision™ CX Video Gateway (also referred to as

Vision™ Server hardware, see the

24).

Dialogic 9

Overview of the CX Video Gateway

CX Video Gateway overview

The CX Video Gateway is a CCXML-based call server that provides call control and transaction capabilities for calls made between the PSTN and IP networks. The gateway provides the following functionality:

• Supports the SIP telecommunications protocol and the ISDN or ISUP protocols.

• Processes audio information, or both audio and video information, depending on the model.

• Terminates T1/E1 TDM audio trunks.

• Defines routes using CCXML applications.

• Optionally provides in-band DTMF support.

• Optionally connects incoming faxes to a third-party T.38 server.

• Optionally provides fast call setup techniques to speed up 3G-324M call setup

time.

• Produces detailed event logs with multiple information levels.

• Provides a web-based console, called the Vision™ Console, to configure and

manage the gateway.

• Provides an SNMP interface for monitoring application usage and server health.

The gateway is installed as a daemon on Linux machines and is composed of the following components:

• Signaling protocols and models

• Media capabilities

• CCXML scripting engine

• SNMP agent and sub-agents

• Fast call setup

These components are based on specific hardware support, including media boards and signaling boards.

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Overview of the CX Video Gateway Dialogic® Vision™ CX Video Gateway Administration Manual

Signaling protocols and models

The gateway can implement the following signaling protocols:

• ISDN, which is available with the ISDN audio and ISDN video models.

• ISUP, which is available with the ISUP audio and ISUP video models. These

models are available with one or more signaling servers.

All CX Video Gateway models use SIP/RTP signaling to in terface with the IP network. For more information, see ISDN models on page

15 and ISUP models on page 16.

12 Dialogic

Dialogic® Vision™ CX Video Gateway Administration Manual Overview of the CX Video Gateway

Media capabilities

The gateway media capabilities support the following codecs:

Codec type

Audio

Video

Codec Description

AMR 3GPP TS 26.090, 26.101, and 26.073, version 5.3.0, 2004. G.711 A-law

and mu-law G.723.1 G.726 G.729 A H.263 Standard: IETF RFC 2190, ITU-T Recommendation H.263, and 3GPP

H.263+ Standard: IETF RFC 2429, ITU-T Recommendation H.263, and 3GPP

specifications TS.26.111, TS.26.911, TS.26.140.

Encoding format (Profile/Level): Baseline level 10, 20, 30. Picture format: QCIF Quarter Common Interchange Format (176 x 144)

and CIF Common Interchange Format (352 x 288). Frame rate: 6 to 30 fps. Integer value only. 3G side is up to 15 fps. IP

side is determined via SDP negotiation. Encoding bit rate: Up to 384 kbps. 3G side is 42 kbps. IP side is

determined via SDP negotiation.

specifications TS.26.111, TS.26.911, TS.26.140. Picture format, frame rate, and encoding bit rate are the same as H.263.

Fax relay

H.264 Standard: IETF draft-ietf-avt-rtp-rfc3984bis-06.txt, ITU-T

MPEG-4 Standard: IETF RFC 3016, ISO/IEC 14496-2:2004 and 3GPP

T.38

Recommendation H.264, and 3GPP specifications TS.26.111, TS.26.911, TS.26.140.

Encoding format (Profile/Level): Baseline profile, level 1.0, 1b, 1.1 and 1.2. Packetization mode single-NAL and non-interleave.

Picture format, frame rate, and encoding bit rate are the same as H.263, except that CIF at 30 fps is not supported.

specifications TS.26.111, TS.26.911, TS.26.140. Encoding format (Profile/Level): Simple profile level 0, 1, 2, and 3. Picture format, frame rate, and encoding bit rate are the same as H.263.

CCXML scripting engine

The CCXML scripting engine enables the CX Video Gateway to execute applications written in the W3C Working Draft of CCXML dated 29th June 2005 (http://www.w3.org/TR/2005/WD-ccxml-20050629). You can use CCXML to write applications that provide call control for the durat ion of a phone call, including call setup, monitoring, and tear-down. You can also use CCXML applications to provide call routing and conferencing functionality.

For more information, see Managing CCXML applications on page gateway routing on page

126, and the Dialogic® Vision™ CCXML Developer's

87, Fine tuning

Manual.

Dialogic 13

Overview of the CX Video Gateway Dialogic® Vision™ CX Video Gateway Administration Manual

SNMP agent and subagents

The CX Video Gateway provides an SNMP interface that lets you monitor gateway performance, view statistics, monitor a RAID server, and receive alarms. The gateway uses Net-SNMP as a master agent and the DS1, Call Server, and RAID subagents. The master agent supports SNMPv1, SNMPv2c, and SNMPv3.

For more information, see the Dialogic® Vision™ SNMP Reference Manual.

Fast call setup

The CX Video Gateway supports the following techniques for speeding up 3G-324M call setup time:

• Packed H.245 messages, which groups independent H.245 messages together into a single NSRP command frame. This reduces the number of message round-trips, and thus reduces call setup time.

• Windowed Simple Retransmission protocol (WNSRP), an H.245 transport improvement technique that is standardized in ITU-T Recommendation H.324 and accepted into the 3G-324M standard by 3GPP.

• Media oriented negotiation acceleration (MONA), which unites the technologies for H.324 call setup acceleration under a common framework. MONA was approved by the ITU-T in August 2006, and is recommended in 3GPP Release 7 in TR 26.911.

Note: You must obtain the appropriate license to use one of these techniques. For information, see the readme file for this release.

The CX Video Gateway does not support:

• The signaling preconfigured channel (SPC) MONA technique.

• Preconfigured channel media frames encapsulated in MONA signaling

preference messages.

14 Dialogic

Dialogic® Vision™ CX Video Gateway Administration Manual Overview of the CX Video Gateway

ISDN models

The CX Video Gateway is available with an ISDN audio model and an ISDN video model.

ISDN audio model

In the ISDN audio model, the gateway:

• Provides ISDN signaling.

• Provides SIP signaling.

• Supports the Call Control Extensible M a rkup Language (CCXML) for call

control.

The following illustration shows the ISDN audio model:

ISDN access

network

ISDN SIP

CX Video Gateway

RTP G.711E1

network

ISDN video model

In the ISDN video model, the gateway:

• Provides ISDN signaling with 3G-324M.

• Provides SIP signaling.

• Provides the option to transcode between AMR and G.711.

• Supports the Call Control Extensible M a rkup Language (CCXML) for call

control.

The ISDN video model requires a mobile video device that supports 3G-324M. The following illustration shows the ISDN v ideo model:

ISDN access

network

ISDN SIP

(3G-324M)

CX Video Gateway

RTP AMR (audio)

RTP H.263 (video)

network

Dialogic 15

Overview of the CX Video Gateway Dialogic® Vision™ CX Video Gateway Administration Manual

ISUP models

The CX Video Gateway is available with an ISUP audio model and an ISUP video model. Each of these models can be configured for scalability and redundant capability.

This topic describes the:

• Basic ISUP audio model

• Basic ISUP video model

• ISUP scalable deployment model

• ISUP redundant deployment model

Basic ISUP audio model

In the basic ISUP audio model, the gateway:

• Provides ISUP signaling.

• Provides SIP signaling.

• Supports the Call Control Extensible M a rkup Language (CCXML) for call

control.

The following illustration shows the basic ISUP audio model:

SS7 access

network

ISUP

CX Video Gateway

SIP

RTP G.711E1

network

16 Dialogic

Dialogic® Vision™ CX Video Gateway Administration Manual Overview of the CX Video Gateway

Basic ISUP video model

In the basic ISUP video model, the gateway:

• Provides ISUP signaling with 3G-324M.

• Provides SIP signaling.

• Provides the option to transcode between AMR and G.711.

• Supports the Call Control Extensible M a rkup Language (CCXML) for call

control.

The basic ISUP video model requires a mobile video device that supports 3G-324M. The following illustration shows the basic ISUP video model:

SS7 access

network

ISUP

(3G-324M)

CX Video Gateway

SIP

RTP AMR (audio)

RTP H.263 (video)

network

Dialogic 17

Overview of the CX Video Gateway Dialogic® Vision™ CX Video Gateway Administration Manual

ISUP scalable deployment model

For scalability, multiple CX Video Gateways can be deployed where the ISUP termination on one gateway provides the signaling between the SS7 access network and each of the other gateways in the system.

In this model, the gateways are configured to share the single signaling point code terminated by the gateway with ISUP interface. This configuration allows for high density deployments for a single signaling point code.

The following illustration shows the ISUP scalable deployment model.

SS7 access

network

ISUP

CX Video Gateway

. . .

SIP

RTP

G.711

SIP

RTP

G.711

SIP

RTP

G.711

network

18 Dialogic

Dialogic® Vision™ CX Video Gateway Administration Manual Overview of the CX Video Gateway

ISUP redundant deployment model

For a redundant and fault-tolerant system, two CX Video Gateways can be deployed to provide higher availability. The gateways share a single signaling point code and provide node-level redundancy.

The following illustration shows an ISUP model with two CX Video Gateways to support redundancy. The redundant pair of gateways with ISUP terminations seamlessly provides signaling services for multiple gateways as in the scalable deployment model.

SS7 access

network

ISUP

CX Video Gateway

. . .

SIP

RTP

G.711

SIP

RTP

G.711

SIP

RTP

G.711

network

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Overview of the CX Video Gateway Dialogic® Vision™ CX Video Gateway Administration Manual

Models with Video Transcoders

The CX Video Gateway includes options for video transcoders. A video transcoder can be deployed in several configurations based on application need as described in the following topics.

• Video Transcoder interconnect

• Video model with a single Video Transcoder

• Video model with multiple Video Transcoders

• Video model with gateways sharing Video Transcoders

• Video model with co-located Video Transcoder

For more information on video transcoders, see Managing video transcoder resources

PSTN

network

Network

94.

ISUP

CX Video

CX Video Gateway

Gateway

SIP

RTP

RTP RTP

Video

Transcoder Transcoder

Transcoder

network

Network

on page

Video Transcoder interconnect

The CX Video Gateway controls the video transcoder resources and inserts the transcoder in the video media path between the gateway and the target IP endpoint. The communication interface to the IP endpoint is SIP. The interworking of the gateway has proprietary control of the video transcoder. Video traffic is routed to and from the video transcoder via RTP. Audio traffic flows separately from the gateway to the IP endpoint via RTP.

Video model with a single Video Transcoder

In the simplest case, a video transcoder is mated with the CX Video Gateway. The gateway is configured with this single video transcoder system which is used to complete gateway routes for the negotiated video codecs.

PSTN

network

CX Video Gateway

Video

Transcoder

network

20 Dialogic

Dialogic® Vision™ CX Video Gateway Administration Manual Overview of the CX Video Gateway

Video model with multiple Video Transcoders

For scalability in transcoding requirements, multiple video tr anscoder systems may be required to satisfy the needs of the application or the connectivity requirements of the target IP endpoints. For this reason, the CX Video Gateway may be configured to use multiple video transcoders.

Video

Transcoder

PSTN

Network

network

CX Video

CX Video Gateway

Gateway

Video

Transcoder

Video

Transcoder

Network

network

Video model with gateways sharing Video Transcoders

For flexibility in deployments and scalability of a gatewa y solution, multiple CX Video Gateways may be configured to share multiple video transcoder systems. In this configuration, the solution provider can view the composite of these servers as a single node or scalable gateway.

Video

Transcoder

Video

Transcoder

Video

Transcoder

network

Network

PSTN

Network

network

CX Video

CX Video Gateway

Gateway

CX Video

CX Video Gateway

Gateway

Video model with co-located Video Transcoder

For small deployments or development systems, the video transcoder may be a subsystem deployed on the same physical server as the CX Video Gateway. Logically these are separate servers and are configured similarly to the Video model with a single Video Transcoder.

PSTN

PSTN Network

Network

network

Dialogic 21

CX Video

CX Video Gateway

Gateway

Video

Transcoder

network

Network

Overview of the CX Video Gateway Dialogic® Vision™ CX Video Gateway Administration Manual

Standards

The CX Video Gateway complies with and supports the following standards, depending on the model:

Standard Version Model

BICC ITU-T Q.1901, 2000 All ISUP

ITU-T Q.1902-6, 2001 ANSI T1.673-2002[R2007]

CCXML Version 1.0, based upon the W3C Working Draft of CCXML dated 29 All models

June 2005 See http://www.w3.org/TR/2005/WD-ccxml-20050629.

ISUP China ISUP All ISUP

EN 300-356-1, ETSI ISUP V.3, 1998 ETS 300-121, ETSI ISUP V.1, 1992 ETS 300-356-1, ETSI ISUP V.2, 1995 ETS 300-356-33, ETSI ITU-T Q.730-737, 1992 ITU-T Q.761-764, 1997 ITU-T Q.767, 1992 ITU-T Q.784, 1996-1997 ANSI T1.113, 236, 1995 NTT Q.761-764 (future)

MTP ETSI ETS 300-008-1, 300-308-2, 1997 All ISUP

GF001-9001 (SS7 for National Telephone Network of China) ITU-T Q.701-702, 1992 ITU-T Q.703-704, 1996 ITU-T Q.707, 1992 ITU-T Q.781-782, 1996 ANSI T1.111, 234, 1992 TTC JJ-90.10 (future) NTT Q.701-704, Q.707 (future) GR-246-CORE GR-606-CORE

models

RFC 2833 RFC 2833, May 2000 All models SIGTRAN SCTP (RFC 2960), 2000 All ISUP

M3UA (RFC 4666), 2006

SIP SIP: Session Initiation Proto col, Rosenberg et al., IETF RFC 3261, June All mo de ls

2002

22 Dialogic

models

Dialogic® Vision™ CX Video Gateway Administration Manual Overview of the CX Video Gateway

Document conventions

By default, the CX Video Gateway software is installed in the /opt/nms/vx directory. This manual uses the string vx to refer to the default installation directory.

Dialogic 23

Overview of the CX Video Gateway Dialogic® Vision™ CX Video Gateway Administration Manual

Dialogic Vision CX Video Administration Manual

Specifications and Main Features

Frequently Asked Questions

User Manual