Cisco Systems OL-14625-01 User Manual

Download

CHAP T E R

Monitoring the Cisco Unified IP Phone Remotely

Each Cisco Unified IP Phone has a web page from which you can view a variety of information about the phone, including:

• Device information

• Network configuration information

• Network statistics

• Device logs

• Streaming statistics

This chapter describes the information that you can obtain from the phone’s web page. You can use this information to remotely monitor the operation of a phone and to assist with troubleshooting.

You can also obtain much of this information directly from a phone. For more information, see

Chapter 7, “Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone.”

For more information about troubleshooting the Cisco Unified IP Phone, Chapter 9, “Troubleshooting

and Maintenance.”

This chapter includes these topics:

• Accessing the Web Page for a Phone, page 8-2

• Disabling and Enabling Web Page Access, page 8-3

• Device Information, page 8-4

• Network Configuration, page 8-5

• Network Statistics, page 8-9

• Device Logs, page 8-11

• Streaming Statistics, page 8-11

OL-14625-01

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

8-1

Accessing the Web Page for a Phone

To access the web page for a Cisco Unified IP Phone, perform these steps.

Note If you cannot access the web page, it may be disabled. See the “Disabling and Enabling Web Page

Access” section on page 8-3 for more information.

Procedure

Step 1 Obtain the IP address of the Cisco Unified IP Phone using one of these methods:

• Search for the phone in Cisco Unified Communications Manager by choosing Device > Phone.

Phones registered with Cisco Unified Communications Manager display the IP address on the Find and List Phones window and at the top of the Phone Configuration window.

• On the Cisco Unified IP Phone, press the Settings button, choose Network Configuration, and then

scroll to the IP Address option.

Step 2 Open a web browser and enter the following URL, where IP_address is the IP address of the

Cisco Unified IP Phone:

http://IP_address

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

The web page for a Cisco Unified IP Phone includes these topics:

• Device Information—Displays device settings and related information for the phone. For more

information, see the “Device Information” section on page 8-4.

• Network Configuration—Displays network configuration information and information about other

phone settings. For more information, see the “Network Configuration” section on page 8-5.

• Network Statistics—Includes the following hyperlinks, which provide information about network

traffic:

–

Ethernet Information—Displays information about Ethernet traffic. For more information, see the “Network Statistics” section on page 8-9.

–

Access (Port)—Displays information about network traffic to and from the PC port on the phone. For more information, see the “Network Statistics” section on page 8-9.

–

Network (Port)—Displays information about network traffic to and from the network port on the phone. For more information, see the “Network Statistics” section on page 8-9.

• Device Logs—Includes the following hyperlinks, which provide information that you can use for

troubleshooting:

–

Console Logs—Includes hyperlinks to individual log files. For more information, see the

“Device Logs” section on page 8-11.

–

Core Dumps—Includes hyperlinks to individual dump files. For more information, see the

“Device Logs” section on page 8-11.

–

Status Messages—Displays up to the 10 most recent status messages that the phone has generated since it was last powered up. For more information, see the “Device Logs” section on

page 8-11.

8-2

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

OL-14625-01

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

–

Debug Display—Displays debug messages that might be useful to Cisco TAC if you require assistance with troubleshooting. For more information, see the “Device Logs” section on

page 8-11.

• Streaming Statistics—Includes the following hyperlinks

–

Stream 1, Stream 2, Stream 3, Stream 4, or Stream 5—Display a variety of streaming statistics. For more information, see the “Streaming Statistics” section on page 8-11.

Disabling and Enabling Web Page Access

For security purposes, you may choose to prevent access to the web pages for a phone. If you do so, you will prevent access to the web pages that are described in this chapter and to the Cisco Unified Communications Manager User Options web pages.

To disable access to the web pages for a phone, follow these steps from Cisco Unified Communications Manager Administration.

Procedure

Disabling and Enabling Web Page Access

Step 1 Choose Device > Phone.

Step 2 Specify the criteria to find the phone and click Find, or click Find to display a list of all phones.

Step 3 Click the device name to open the Phone Configuration window for the device.

Step 4 Scroll down to the Product Specific Configuration section. From the Web Access drop-down list box,

choose Disabled.

Step 5 Click Update.

Note Some features, such as Cisco Quality Report Tool, do not function properly without access to

the phone web pages. Disabling web access also affects any serviceability application that relies on web access, such as CiscoWorks.

To enable web page access when it is disabled, see the preceding steps about disabling access. Follow the same steps, but choose Enabled in Step 4 to enable the web page.

OL-14625-01

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

8-3

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Device Information

The Device Information area on a phone’s web page displays device settings and related information for the phone. Table 8-1 describes these items.

To display the Device Information area, access the web page for the phone as described in the “Accessing

the Web Page for a Phone” section on page 8-2, and then click the Device Information hyperlink.

Table 8-1 Device Information Area Items

Item Description

MAC Address Media Access Control (MAC) address of the phone

Host Name Unique, fixed name that is automatically assigned to the phone based on its MAC address

Phone DN Directory number assigned to the phone

App Load ID Identifier of the firmware running on the phone

Boot Load ID Identifier of the factory-installed load running on the phone

Version Version of the firmware running on the phone

Expansion Module 1 Phone load ID for the first Cisco Unified IP Phone Expansion Module 7914, if connected

to the phone

Expansion Module 2 Phone load ID for the second Cisco Unified IP Phone Expansion Module 7914, if

connected to the phone

Hardware Revision Revision value of the phone hardware

Serial Number Serial number of the phone

Model Number Model number of the phone

Message Waiting Indicates if there is a voice message waiting on any line for this phone

UDI Displays the following Cisco Unique Device Identifier (UDI) information about the phone:

• Device Type—Indicates hardware type. For example, phone displays for all phone

models

• Device Description—Displays the name of the phone associated with the indicated

model type

• Product Identifier—Specifies the phone model

• Version Identifier

• Serial Number—Displays the phone’s unique serial number

—Represents the hardware version of the phone

Time Time obtained from the Date/Time Group in Cisco Unified Communications Manager to

which the phone belongs

Time Zone Time zone obtained from the Date/Time Group in Cisco Unified Communications Manager

to which the phone belongs

Date Date obtained from the Date/Time Group in Cisco Unified Communications Manager to

which the phone belongs

1. The Version Identifier field might display blank if using an older model Cisco Unified IP Phone because the hardware does not provide this information.

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

8-4

OL-14625-01

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Network Configuration

The Network Configuration area on a phone’s web page displays network configuration information and information about other phone settings. Table 8-2 describes these items.

You can view and set many of these items from the Network Configuration Menu and the Device Configuration Menu on the Cisco Unified IP Phone. For more information, see Chapter 5, “Configuring

Features, Templates, Services, and Users.”

To display the Network Configuration area, access the web page for the phone as described in the

“Accessing the Web Page for a Phone” section on page 8-2, and then click the Network Configuration

hyperlink.

Table 8-2 Network Configuration Area Items

Item Description

DHCP Server IP address of the Dynamic Host Configuration Protocol (DHCP) server from which the

phone obtains its IP address.

BOOTP Server Indicates whether the phone obtains its configuration from a Bootstrap Protocol (BootP)

server.

MAC Address Media Access Control (MAC) address of the phone.

Host Name Host name that the DHCP server assigned to the phone.

Domain Name Name of the Domain Name System (DNS) domain in which the phone resides.

IP Address Internet Protocol (IP) address of the phone.

Subnet Mask Subnet mask used by the phone.

TFTP Server 1 Primary Trivial File Transfer Protocol (TFTP) server used by the phone.

Default Router 1–5 Default router used by the phone (Default Router 1) and optional backup routers (Default

Router 2–5).

DNS Server 1–5 Primary Domain Name System (DNS) server (DNS Server 1) and optional backup DNS

servers (DNS Server 2–5) used by the phone.

Operational VLAN ID Auxiliary Virtual Local Area Network (VLAN) configured on a Cisco Catalyst switch in

which the phone is a member.

Admin. VLAN ID Auxiliary VLAN in which the phone is a member.

OL-14625-01

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

8-5

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Network Configuration

Table 8-2 Network Configuration Area Items (continued)

Item Description

Communications Manager 1–5

Information URL URL of the help text that appears on the phone.

Directories URL URL of the server from which the phone obtains directory information.

Messages URL URL of the server from which the phone obtains message services.

Services URL URL of the server from which the phone obtains Cisco Unified IP Phone services.

DHCP Enabled Indicates whether DHCP is being used by the phone.

DHCP Address Released Indicates the setting of the DHCP Address Released option on the phone’s Network

Alternate TFTP Indicates whether the phone is using an alternative TFTP server.

Idle URL URL that the phone displays when the phone has not been used for the time specified by

Idle URL Time Number of seconds that the phone has not been used and no menu is open before the XML

Proxy Server URL URL of proxy server, which makes HTTP requests to non-local host addresses on behalf of

Authentication URL URL that the phone uses to validate requests made to the phone web server.

Host names or IP addresses, in prioritized order, of the Cisco Unified Communications Manager servers with which the phone can register. An item can also show the IP address of an SRST router that is capable of providing limited Cisco Unified Communications Manager functionality, if such a router is available.

For an available server, an item will show the Cisco Unified Communications Manager server IP address and one of the following states:

• Active—Cisco Unified Communications Manager server from which the phone is

currently receiving call-processing services.

• Standby—Cisco Unified Communications Manager server to which the phone

switches if the current server becomes unavailable.

• Blank—No current connection to this Cisco Unified Communications Manager server.

An item may also include the Survivable Remote Site Telephony (SRST) designation, which identifies an SRST router capable of providing Cisco Unified Communications Manager functionality with a limited feature set. This router assumes control of call processing if all other Cisco Unified Communications Manager servers become unreachable. The SRST Cisco Unified Communications Manager always appears last in the list of servers, even if it is active. You configure the SRST router address in the Device Pool section in Cisco Unified Communications Manager Configuration window.

Configuration menu.

Idle URL Time, and no menu is open.

service specified by Idle URL is activated.

the phone HTTP client and provides responses from the non-local host to the phone HTTP client.

8-6

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

OL-14625-01

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Network Configuration

Table 8-2 Network Configuration Area Items (continued)

Item Description

SW Port Configuration Speed and duplex of the switch port, where:

• A—Auto Negotiate

• 10H—10-BaseT/half duplex

• 10F—10-BaseT/full duplex

• 100H—100-BaseT/half duplex

• 100F—100-BaseT/full duplex

• No Link—No connection to the switch port

PC Port Configuration Speed and duplex of the switch port, where:

• A—Auto Negotiate

• 10H—10-BaseT/half duplex

• 10F—10-BaseT/full duplex

• 100H—100-BaseT/half duplex

• 100F—100-BaseT/full duplex

• No Link—No connection to the PC port

TFTP Server 2 Backup TFTP server that the phone uses if the primary TFTP server is unavailable.

User Locale User locale associated with the phone user. Identifies a set of detailed information to

support users, including language, font, date and time formatting, and alphanumeric keyboard text information.

Network Locale Network locale associated with the phone user. Identifies a set of detailed information to

support the phone in a specific location, including definitions of the tones and cadences used by the phone.

Headset Enabled Indicates whether the Headset button is enabled on the phone.

User Locale Version Version of the user locale loaded on the phone.

Network Locale Version Version of the network locale loaded on the phone.

PC Port Disabled Indicates whether the PC port on the phone is enabled or disabled.

Speaker Enabled Indicates whether the speakerphone is enabled on the phone.

GARP Enabled Indicates whether the phone learns MAC addresses from Gratuitous ARP responses.

Video Capability Enabled Indicates whether the phone can participate in video calls when connected to an

appropriately equipped PC.

Voice VLAN Enabled Indicates whether the phone allows a device attached to the PC port to access the Voice

VLAN.

Auto Line Select Indicates whether the phone shifts the call focus to incoming calls on all lines.

DSCP for Call Control DSCP IP classification for call control signaling.

DSCP for Configuration DSCP IP classification for any phone configuration transfer.

DSCP for Services DSCP IP classification for phone-based services.

Security Mode Displays the security mode that is set for the phone.

Web Access Enabled Indicates whether web access is enabled (Yes) or disabled (No) for the phone.

OL-14625-01

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

8-7

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Network Configuration

Table 8-2 Network Configuration Area Items (continued)

Item Description

Span to PC Port Indicates whether the phone will forward packets transmitted and received on the network

port to the access port.

PC VLAN VLAN used to identify and remove 802.1P/Q tags from packets sent to the PC.

Forwarding Delay Indicates whether the internal switch begins forwarding packets between the PC port and

switched port on the phone when the phone becomes active.

LLDP: PC Port Indicates whether Link Layer Discovery Protocol (LLDP) is enabled on the PC port.

LLDP-MED: SW Port Indicates whether Link Layer Discovery Protocol Media Endpoint Discovery

(LLDP-MED) is enabled on the switch port.

LLDP Power Priority Advertises the phone’s power priority to the switch, enabling the switch to appropriately

provide power to the phones. Settings include:

• Unknown—default

• Low

• High

• Critical

LLDP Asset ID Identifies the asset ID assigned to the phone for inventory management.

CDP: PC Port Indicates whether CDP is supported on the PC port (default is enabled).

Enable CDP on the PC port when Cisco VT Advantage/Unified Video Advantage (CVTA) is connected to the PC port. CVTA does not work without CDP interaction with the phone.

Note When CDP is disabled in Cisco Unified Communications Manager, a warning is

displayed, indicating that disabling CDP on the PC port prevents CVTA from working.

Note The current PC and switch port CDP values are shown on the Settings menu.

CDP: SW Port Indicates whether CDP is supported on the switch port (default is enabled).

• Enable CDP on the switch port for VLAN assignment for the phone, power

negotiation, QoS management, and 802.1x security.

• Enable CDP on the switch port when the phone is connected to a Cisco switch.

Note When CDP is disabled in Cisco Unified Communications Manager, a warning is

presented, indicating that CDP should be disabled on the switch port only if the phone is connected to a non-Cisco switch.

Note The current PC and switch port CDP values are shown on the Settings menu.

LLDP Power Priority Advertises the phone’s power priority to the switch, enabling the switch to appropriately

provide power to the phones. Settings include:

• Unknown—default

• Low

• High

• Critical

LLDP Asset ID Identifies the asset ID assigned to the phone for inventory management.

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

8-8

OL-14625-01

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Network Statistics

The following network statistics hyperlinks on a phone’s web page provide information about network traffic on the phone. To display a network statistics area, access the web page for the phone as described in the “Accessing the Web Page for a Phone” section on page 8-2.

• Ethernet Information—Displays information about Ethernet traffic. Tab le 8-3 describes the items in

this area.

• Access—Displays information about network traffic to and from the PC port (10/100 PC) on the

phone. Table 8- 4 describes the items in this area.

• Network—Displays information about network traffic to and from the network port (10/100 SW) on

the phone. Table 8-4 describes the items in this area.

Table 8-3 Ethernet Information Items

Item Description

Tx Frames Total number of packets transmitted by the phone

Tx broadcast Total number of broadcast packets transmitted by the phone

Tx multicast Total number of multicast packets transmitted by the phone

Tx unicast Total number of unicast packets transmitted by the phone

Rx Frames Total number of packets received by the phone

Rx broadcast Total number of broadcast packets received by the phone

Rx multicast Total number of multicast packets received by the phone

Rx unicast Total number of unicast packets received by the phone

RxPacketNoDes Total number of shed packets caused by no Direct Memory Access (DMA) descriptor

Table 8-4 Access Area and Network Items

Item Description

Rx totalPkt Total number of packets received by the phone

Rx crcErr Total number of packets received with CRC failed

Rx alignErr Total number of packets received between 64 and 1522 bytes in length that have a bad

Frame Check Sequence (FCS)

Rx multicast Total number of multicast packets received by the phone

Rx broadcast Total number of broadcast packets received by the phone

Rx unicast Total number of unicast packets received by the phone

Rx shortErr Total number of FCS error packets or Align error packets received that are less than 64

bytes in size

Rx shortGood Total number of good packets received that are less than 64 bytes size

Rx longGood Total number of good packets received that are greater than 1522 bytes in size

Rx longErr Total number of FCS error packets or Align error packets received that are greater than

1522 bytes in size

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

OL-14625-01

8-9

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Network Statistics

Table 8-4 Access Area and Network Items (continued)

Item Description

Rx size64 Total number of packets received, including bad packets, that are between 0 and 64 bytes

in size

Rx size65 to127 Total number of packets received, including bad packets, that are between 65 and 127

bytes in size

Rx size128 to255 Total number of packets received, including bad packets, that are between 128 and 255

bytes in size

Rx size256 to511 Total number of packets received, including bad packets, that are between 256 and 511

bytes in size

Rx size512 to1023 Total number of packets received, including bad packets, that are between 512 and 1023

bytes in size

Rx size1024 to1518 Total number of packets received, including bad packets, that are between 1024 and 1518

bytes in size

Rx tokenDrop Total number of packets dropped due to lack of resources (for example, FIFO overflow)

Tx excessDefer Total number of packets delayed from transmitting due to medium being busy

Tx lateCollision Number of times that collisions occurred later than 512 bit times after the start of packet

transmission

Tx totalGoodPkt Total number of good packets (multicast, broadcast, and unicast) received by the phone

Tx Collisions Total number of collisions that occurred while a packet was being transmitted

Tx excessLength Total number of packets not transmitted because the packet experienced 16 transmission

attempts

Tx broadcast Total number of broadcast packets transmitted by the phone

Tx multicast Total number of multicast packets transmitted by the phone

LLDP FramesOutTotal Total number of LLDP frames sent out from the phone

LLDP AgeoutsTotal Total number of LLDP frames that have been time out in cache

LLDP FramesDiscardedTotal Total number of LLDP frames that are discarded when any of the mandatory TLVs is

missing or out of order or contains out of range string length.

LLDP FramesInErrorsTotal Total number of LLDP frames that received with one or more detectable errors

LLDP FramesInTotal Total number of LLDP frames received on the phone.

LLDP TLVDiscardedTotal Total number of LLDP TLVs that are discarded.

LLDP TLVUnrecognizedTotal Total number of LLDP TLVs that are not recognized on the phone.

CDP Neighbor Device ID Identifier of a device connected to this port discovered by CDP protocol.

CDP Neighbor IP Address IP address of the neighbor device discovered by CDP protocol.

CDP Neighbor Port Neighbor device port to which the phone is connected discovered by CDP protocol.

LLDP Neighbor Device ID Identifier of a device connected to this port discovered by LLDP protocol.

LLDP Neighbor IP Address IP address of the neighbor device discovered by LLDP protocol.

LLDP Neighbor Port Neighbor device port to which the phone is connected discovered by LLDP protocol.

8-10

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

OL-14625-01

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Device Logs

The following device logs hyperlinks on a phone’s web page provide information you can use to help monitor and troubleshoot the phone. To access a device log area, access the web page for the phone as described in the “Accessing the Web Page for a Phone” section on page 8-2.

• Console Logs—Includes hyperlinks to individual log files. The console log files include debug and

error messages received on the phone.

• Core Dumps—Includes hyperlinks to individual dump files. The core dump files include data from

a phone crash.

• Status Messages—Displays up to the 10 most recent status messages that the phone has generated

since it was last powered up. You can also see this information from the Status Messages screen on the phone. Table 7-2 describes the status messages that can appear.

• Debug Display—Displays debug messages that might be useful to Cisco TAC if you require

assistance with troubleshooting.

Streaming Statistics

Device Logs

A Cisco Unified IP Phone can stream information to and from up to three devices simultaneously. A phone streams information when it is on a a call or running a service that sends or receives audio or data.

The streaming statistics areas on a phone’s web page provide information about the streams. Most calls use only one stream (Stream 1), but some calls use two or three stream. For example, a barged call uses Stream 1 and Stream 2.

To display a Streaming Statistics area, access the web page for the phone as described in the “Accessing

the Web Page for a Phone” section on page 8-2, and then click the Stream 1, the Stream 2, the Stream

3, the Stream 4, or the Stream 5 hyperlink.

Table 8-5 describes the items in the Streaming Statistics areas.

Table 8-5 Streaming Statistics Area Items

Item Description

Remote Address IP address and UDP port of the destination of the stream.

Local Address IP address and UPD port of the phone.

Start Time Internal time stamp indicating when Cisco Unified Communications Manager requested

that the phone start transmitting packets.

Stream Status Indication of whether streaming is active or not.

Host Name Unique, fixed name that is automatically assigned to the phone based on its MAC address.

Sender Packets Total number of RTP data packets transmitted by the phone since starting this connection.

The value is 0 if the connection is set to receive only mode.

Sender Octets Total number of payload octets transmitted in RTP data packets by the phone since starting

this connection. The value is 0 if the connection is set to receive only mode.

Sender Codec Type of audio encoding used for the transmitted stream.

Sender Reports Sent

Sender Report Time Sent

Number of times the RTCP Sender Report have been sent.

Internal time stamp indication when the last RTCP Sender Report was sent.

OL-14625-01

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

8-11

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Streaming Statistics

Table 8-5 Streaming Statistics Area Items (continued)

Item Description

Rcvr Lost Packets Total number of RTP data packets that have been lost since starting receiving data on this

connection. Defined as the number of expected packets less the number of packets actually received, where the number of received packets includes any that are late or duplicate. The value displays as 0 if the connection was set to send-only mode.

Avg Jitter Estimate of mean deviation of the RTP data packet inter-arrival time, measured in

milliseconds. The value displays as 0 if the connection was set to send-only mode.

Rcvr Codec Type of audio encoding used for the received stream.

Rcvr Reports Sent

Rcvr Report Time Sent

Rcvr Packets Total number of RTP data packets received by the phone since starting receiving data on

Rcvr Octets Total number of payload octets received in RTP data packets by the device since starting

MOS LQK Score that is an objective estimate of the mean opinion score (MOS) for listening quality

Number of times the RTCP Receiver Reports have been sent.

Internal time stamp indication when a RTCP Receiver Report was sent.

this connection. Includes packets received from different sources if this is a multicast call. The value displays as 0 if the connection was set to send-only mode.

reception on the connection. Includes packets received from different sources if this is a multicast call. The value displays as 0 if the connection was set to send-only mode.

(LQK) that rates from 5 (excellent) to 1 (bad). This score is based on audible concealment events due to frame loss in the preceding 8-second interval of the voice stream. For more information, see the “Monitoring the Voice Quality of Calls” section on page 9-15.

Note The MOS LQK score can vary based on the type of codec that the

Cisco Unified IP Phone uses.

Avg MOS LQK Average MOS LQK score observed for the entire voice stream.

Min MOS LQK Lowest MOS LQK score observed from start of the voice stream.

Max MOS LQK Baseline or highest MOS LQK score observed from start of the voice stream.

These codecs provide the following maximum MOS LQK score under normal conditions with no frame loss:

• G.711 gives 4.5

• G.722 gives 4.5

• G.728/iLBC gives 3.9

• G.729 A/AB gives 3.8

MOS LQK Version Version of the Cisco proprietary algorithm used to calculate MOS LQK scores.

Cumulative Conceal Ratio Total number of concealment frames divided by total number of speech frames received

from start of the voice stream.

Interval Conceal Ratio Ratio of concealment frames to speech frames in preceding 3-second interval of active

speech. If using voice activity detection (VAD), a longer interval might be required to accumulate 3 seconds of active speech.

Max Conceal Ratio Highest interval concealment ratio from start of the voice stream.

Conceal Secs Number of seconds that have concealment events (lost frames) from the start of the voice

stream (includes severely concealed seconds).

Severely Conceal Secs Number of seconds that have more than 5 percent concealment events (lost frames) from

the start of the voice stream.

8-12

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

OL-14625-01

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Streaming Statistics

Table 8-5 Streaming Statistics Area Items (continued)

Item Description

Latency

Max Jitter Maximum value of instantaneous jitter, in milliseconds.

Sender Size RTP packet size, in milliseconds, for the transmitted stream.

Sender Reports Received

Sender Report Time Received

Rcvr Size RTP packet size, in milliseconds, for the received stream.

Rcvr Discarded RTP packets received from network but discarded from jitter buffers.

Rcvr Reports Received

Rcvr Report Time Received

Voice Quality Metrics

MOS LQK Score that is an objective estimate of the mean opinion score (MOS) for listening quality

Estimate of the network latency, expressed in milliseconds. Represents a running average of the round-trip delay, measured when RTCP receiver report blocks are received.

Number of times RTCP Sender Reports have been received.

Last time at which an RTCP Sender Report was received.

Number of times RTCP Receiver Reports have been received.

Last time at which an RTCP Receiver Report was received.

The MOS LQK score can vary based on the type of codec that the Cisco Unified IP Phone uses.

Avg MOS LQK Average MOS LQK score observed for the entire voice stream.

Min MOS LQK Lowest MOS LQK score observed from start of the voice stream.

Max MOS LQK Baseline or highest MOS LQK score observed from start of the voice stream.

These codecs provide the following maximum MOS LQK score under normal conditions with no frame loss:

• G.711 gives 4.5

• G.722 gives 4.5

• G.728/iLBC gives 3.9

• G.729 A/AB gives 3.8

MOS LQK Version Version of the Cisco proprietary algorithm used to calculate MOS LQK scores.

Cmltve Conceal Ratio Total number of concealment frames divided by total number of speech frames received

from start of the voice stream.

Interval Conceal Ratio Ratio of concealment frames to speech frames in preceding 3-second interval of active

speech. If using voice activity detection (VAD), a longer interval might be required to accumulate 3 seconds of active speech.

Max Conceal Ratio Highest interval concealment ratio from start of the voice stream.

Conceal Secs Number of seconds that have concealment events (lost frames) from the start of the voice

stream (includes severely concealed seconds).

Severely Conceal Secs Number of seconds that have more than 5 percent concealment events (lost frames) from

the start of the voice stream.

1. When the RTP Control Protocol is disabled, no data generates for this field and thus displays as 0.

OL-14625-01

Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1

8-13

Streaming Statistics

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Cisco Systems OL-14625-01 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Accessing the Web Page for a Phone

Disabling and Enabling Web Page Access

Device Information

Network Configuration

Network Statistics

Device Logs

Streaming Statistics