Cisco OL-23092-01 User Manual

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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

Note The Cisco Unified IP Phone does not support web access on its IPv6 address.

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 Phones.

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For more information about troubleshooting the Cisco Unified IP Phone, see 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 8-12

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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 Disabling and Enabling Web Page Access,

page 8-3 for more information.

Procedure

Step 1 Obtain the IP address of the Cisco Unified IP Phone by 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 at the top of the Phone Configuration window.

• On the 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> or https://<IP_address> (depending on the protocol supported by the Cisco Unified IP Phone)

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

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

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

information, see Device Information, page 8-4.

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

phone settings. For more information, see Network Configuration, 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

Network Statistics, page 8-9.

–

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

–

Network—Displays information about network traffic to and from the network port on the phone. For more information, see Network Statistics, 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 Device

Logs, page 8-11.

–

Core Dumps—Includes hyperlinks to individual dump files.

–

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 Device Logs, page 8-11.

–

Debug Display—Displays messages that might be useful to the Cisco TAC if you require assistance with troubleshooting. For more information, see Device Logs, page 8-11.

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Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Streaming Statistics—Includes the Stream 1, Stream 2, Stream 3, Stream 4 and Stream 5 hyperlinks, which display a variety of streaming statistics. For more information, see Streaming Statistics,

page 8-12.

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 phone’s User Options web pages.

You can enable or disable access to the web pages for an individual phone, a group of phones, or to all phones in the system.

To enable or disable access to the web pages for all phones on the system, choose System > Enterprise Parameters and select Enabled or Disabled from the Web Access drop-down menu.

To enable or disable access to the web pages for a group of phones, choose Device > Device Settings > Common Phone Profile to create a new phone profile or to update an existing phone profile, select Enabled or Disabled from the Web Access drop-down menu and select the common phone profile when you configure your phone.

Disabling and Enabling Web Page Access

To enable or control access to the web pages for a phone, follow these steps from Cisco Unified Communications Manager Administration:

Procedure

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 From the Web Access drop-down list box, choose Disabled if you want to disable your phone and choose

Enabled if you want to enable your phone.

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.

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Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Configuring the Cisco Unified IP Phone to use HTTP/HTTPS Protocols

The Cisco Unified IP Phone can be configured to use:

• The HTTPS protocol only

• The HTTP or HTTPS protocols

If your Cisco Unified IP Phone is configured to use the HTTP or HTTPS protocols (the second case above), use http://<IP_address> or https://<IP_address> for the phone’s web access.

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, 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.

Expansion Module 2 Phone load ID for the second Cisco Unified IP Phone Expansion Module.

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.

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Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Table 8-1 Device Information Area Items (continued)

Item Description

UDI Displays the following Cisco Unique Device Identifier (UDI) information

about the phone:

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

Manager to which the phone belongs.

Time Zone Timezone 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.

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.

Network Configuration

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

all phone models.

• Device Description—Displays the name of the phone that is associated

with the indicated model type.

• Product Identifier—Specifies the phone model.

• Version Identifier—Represents the hardware version of the phone.

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

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

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 this information.

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

Chapter 8, Accessing the Web Page for a Phone, 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

BOOTP Server Indicates whether the phone obtains its configuration from a Bootstrap

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

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from which the phone obtains its IP address.

Protocol (BootP) server.

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Network Configuration

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Table 8-2 Network Configuration Area Items (continued)

Item Description

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.

Unified CM 1–5 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.

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.

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Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Table 8-2 Network Configuration Area Items (continued)

Item Description

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

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

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

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

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

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

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

Network Configuration

Phone services.

phone’s Network Configuration menu.

time specified by Idle URL Time, and no menu is open.

open before the XML service specified by Idle URL is activated.

addresses on behalf of the phone HTTP client and provides responses from the non-local host to the phone HTTP client.

server.

• A—Auto Negotiate

• 10H—10-BaseT/half duplex

• 10F—10-BaseT/full duplex

• 100H—100-BaseT/half duplex

• 100F—100-BaseT/full duplex

• 1000H—1000-BaseT/half duplex

• 1000F—1000-BaseT/full duplex

• No Link—No connection to the switch port

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

• A—Autonegotiate

• 10H—10-BaseT/half duplex

• 10F—10-BaseT/full duplex

• 100H—100-BaseT/half duplex

• 100F—100-BaseT/full duplex

• 1000H—1000-BaseT/half duplex

• 1000F—1000-BaseT/full duplex

• No Link—No connection to the PC port

To configure the setting on multiple phones simultaneously, configure the Remote Port Configuration in the Enterprise Phone Configuration (System > Enterprise Phone Configuration).

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Note If the ports are configured for Remote Port Configuration in

Unified CM, the data cannot be changed on the phone.

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Network Configuration

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Table 8-2 Network Configuration Area Items (continued)

Item Description

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.

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.

CDP: PC Port Indicates whether CDP is supported on the PC port.

CDP: SW Port Indicates whether CDP is supported on the switch xport.

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

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

LLDP: PC Port Indicates whether Link Layer Discovery Protocol (LLDP) is enabled

on the PC port.

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Table 8-2 Network Configuration Area Items (continued)

Item Description

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

Wireless Headset Hookswitch Control

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

Network Statistics

management.

Enables users to receive notifications of incoming calls and answer or end calls while working in a wireless environment.

switch to appropriately provide power to the phones. Settings include:

• Unknown—default

• Low

• High

• Critical

These network statistics areas on a phone’s web page provide information about network traffic on the phone:

• Ethernet Information area—Displays information about Ethernet traffic. Table 8-3 describes the

items in this area.

• Access area—Displays information about network traffic to and from the PC port on the phone.

Table 8-4 describes the items in this area.

• Network area—Displays information about network traffic to and from the network port on the

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

To display a network statistics area, access the web page for the phone as described in the Accessing the

Web Page for a Phone, page 8-2, and then click the Ethernet Information, the Access, and or the

Network hyperlink.

Table 8-3 Ethernet Information Area 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

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Network Statistics

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Table 8-4 Access Area and Network Area 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

Rx size64 Total number of packets received, including bad packets, that are

between 0 and 64 bytes in size

Rx size65to127 Total number of packets received, including bad packets, that are

between 65 and 127 bytes in size

Rx size128to255 Total number of packets received, including bad packets, that are

between 128 and 255 bytes in size

Rx size256to511 Total number of packets received, including bad packets, that are

between 256 and 511 bytes in size

Rx size512to1023 Total number of packets received, including bad packets, that are

between 512 and 1023 bytes in size

Rx size1024to1518 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

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Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

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

Item Description

Neighbor Device ID Identifier of a device connected to this port

Neighbor IP Address IP address of the neighbor device

Neighbor Port Neighbor device port to which the phone is connected

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

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

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

LLDP TLVDiscardedTotal Total number of LLDP TLVs that are discarded.

LLDP TLVUnrecognizedTotal

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

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

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

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

Device Logs

mandatory TLVs is missing or out of order or contains out of range string length.

detectable errors

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

protocol.

CDP protocol.

protocol.

LLDP protocol.

Device Logs

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The Device Logs area on a phone’s web page provides information you can use to help monitor and troubleshoot the phone.

• 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.

• Status Messages area—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. Tab le 7-2 describes the status messages that can appear.

To display the Status Messages, access the web page for the phone as described in the Accessing the

Web Page for a Phone, page 8-2, and then click the Status Messages hyperlink.

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

assistance with troubleshooting.

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Streaming Statistics

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, page 8-2, and then click the Stream 1, the Stream 2, or the Stream 3

hyperlink (Cisco Unfed IP Phones 7975G, 7965G, and 7945G also include Stream 4 and Stream 5 hyperlinks).

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

Stream Status Indication of whether streaming is active or not.

Host Name Unique, fixed name that is automatically assigned to the phone based

Sender Packets Total number of RTP data packets transmitted by the phone since

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

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

Sender Reports Sent

Sender Report Time Sent

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

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

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

Rcvr Reports Sent

Rcvr Report Time Sent

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely

Manager requested that the phone start transmitting packets.

on its MAC address.

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

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

Number of times the RTCP Sender Reports have been sent.

Internal time stamp indicating when a RTCP Sender Report was sent.

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.

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

Number of times the RTCP Receiver Reports have been sent.

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

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Table 8-5 Streaming Statistics Area Items (continued)

Item Description

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

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

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

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

Streaming Statistics

receiving data on 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.

device since starting 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.

for listening quality (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 Monitoring the Voice Quality of Calls, page 9-18.

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

the Cisco Unified IP Phone uses.

stream.

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

For Cisco Unified IP Phone 7975G, 7965G, and 7945G:

• G.711 gives 4.5

• G.722 gives 4.5

• G.728/iLBC gives 3.9

• G.729 A/AB gives 3.8

For Cisco Unified IP Phone 7971G-GE and 7970G:

• G.711 gives 4.5

• G.729 A /AB gives 3.7

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).

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Streaming Statistics

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Table 8-5 Streaming Statistics Area Items (continued)

Item Description

Severely Conceal Secs Number of seconds that have more than 5 percent concealment events

(lost frames) from the start of the voice stream.

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)

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.

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:

For Cisco Unified IP Phone 7975G, 7965G, and 7945G:

• G.711 gives 4.5

• G.722 gives 4.5

• G.728/iLBC gives 3.9

• G.729 A/AB gives 3.8

For Cisco Unified IP Phone 7971G-GE and 7970G:

• G.711 gives 4.5

• G.729 A /AB gives 3.7

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

LQK scores.

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Table 8-5 Streaming Statistics Area Items (continued)

Item Description

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

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

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

Severely Conceal Secs Number of seconds that have more than 5 percent concealment events

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

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Frequently Asked Questions

User Manual

Accessing the Web Page for a Phone

Disabling and Enabling Web Page Access

Configuring the Cisco Unified IP Phone to use HTTP/HTTPS Protocols

Device Information

Network Configuration

Network Statistics

Device Logs

Streaming Statistics