Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP)
Monitoring the Cisco Unified IP Phone Remotely
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Monitoring the Cisco Unified IP Phone Remotely

Table Of Contents

Monitoring the Cisco Unified IP Phone Remotely

Accessing the Web Page for a Phone

Disabling and Enabling Web Page Access

Device Information

Network Setup

Network Statistics

Device Logs

Status Messages

Streaming Statistics


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 setup 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.

For more information about troubleshooting the Cisco Unified IP Phone, Chapter 7 "Troubleshooting and Maintenance."

This chapter includes these topics:

Accessing the Web Page for a Phone

Disabling and Enabling Web Page Access

Device Information

Network Setup

Network Statistics

Device Logs

Streaming Statistics

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 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 *, #, and 0 buttons simultaneously, enter the password, and then follow the voice prompts to review the network setting.

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


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.

Network Setup—Displays network configuration information and information about other phone settings. For more information, see the "Network Setup" section.

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.

Network (Port)—Displays information about network traffic to and from the network port on the phone. For more information, see the "Network Statistics" section.

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.

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

Status Messages—Displays up to 30 of the most recent status messages that the phone has generated since it was last powered up. For more information, see the "Device Logs" section.

Streaming Statistics—Includes the following hyperlink:

Stream —Displays a variety of streaming statistics. For more information, see the "Streaming Statistics" section.

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 CM User Options web pages.

To disable 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 Scroll down to the Product Specific Configuration section. From the Web Access drop-down list, choose Disabled.

Step 5 Click Save.

Step 6 Click Apply Config.


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.

Device Information

The Device Information area on a phone's web page displays device settings and related information for the phone. Table 6-1 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, and then click the Device Information hyperlink.

Table 6-1 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

Hardware Revision

Revision value of the phone hardware

Serial Number

Unique serial number of the phone

Model Number

Model number of the phone

Message Waiting

Indicates if there is a voice message waiting on the primary 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—Represents the hardware version of the phone

Serial Number—Displays the unique serial number 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


Network Setup

The Network Setup on a phone's web page displays network setup information and information about other phone settings. Table 6-2 describes these items.

You can view and set many of these items from the Network Setup Menu and the Phone Information Menu on the Cisco Unified IP Phone. For more information, see Chapter 4 "Configuring Settings on the Cisco Unified IP Phone."

To display the Network Setup area, access the web page for the phone as described in the "Accessing the Web Page for a Phone" section, and then click the Network Configuration hyperlink.

Table 6-2 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.

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.

TFTP Server 2

Backup Trivial File Transfer Protocol (TFTP) server used by the phone.

Default Router 1

Default router used by the phone.

DNS Server 1 through 5

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

CallManager 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.

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 Configuration menu.

Alternate TFTP

Indicates whether the phone is using an alternative TFTP server.

Forwarding Delay

Indicates whether the internal switch begins forwarding packets between the PC port and switched port on your phone when your phone becomes active. When forwarding delay is set to disabled, the internal switch begins forwarding packets immediately. When forwarding delay is set to enabled, the internal switch waits eight seconds before forwarding packets between the PC port and the SW port. You should set forwarding delay to enabled when you connect both ports to switches for redundant uplinks or when you daisy-chain phones together.

SW Port Setup

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 Setup

(Cisco Unified IP Phone 6911 only)

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

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.

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

(Cisco Unified IP Phone 6911 only)

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

Speaker Enabled

(Cisco Unified IP Phone 6911 only)

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

(Cisco Unified IP Phone 6911 only)

Indicates whether the phone can participate in video calls when connected to an appropriately equipped PC.

Voice VLAN Enabled

(Cisco Unified IP Phone 6911 only)

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

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

(Cisco Unified IP Phone 6911 only)

Indicates whether the phone will forward packets transmitted and received on the network port to the access port.

CDP: PC Port

(Cisco Unified IP Phone 6911 only)

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.

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.

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.

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.

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


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.

Ethernet Information—Displays information about Ethernet traffic. Table 6-3 describes the items in this area.

Network Information (Cisco Unified IP Phone 6901)—Displays information about network traffic to and from the network port (10/100 SW) on the phone. Table 6-5 describes the items in this area.

Network and Access Information (Cisco Unified IP Phone 6911)—Displays information about network traffic to and from the network port (10/100 SW) on the phone. Table 6-5 describes the items in this area.

Table 6-3 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 below

Table 6-4 Network Items on the Cisco Unified IP Phone 6901 

Item
Description

Tx Frames

Total number of packets transmitted by the phone

Tx broadcast

Total number of broadcast 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 unicast

Total number of unicast packets received by the phone

Neighbor Device ID

Identifier of a device connected to this port discovered by CDP protocol or LLDP

Neighbor IP Address

IP address of the neighbor device discovered by CDP protocol

Neighbor Port

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

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

Restart Cause

Reason for the last restart

Port

Speed and duplex information

IPv4

IPv4 Address


Table 6-5 Network and Access Items on the Cisco Unified IP Phone 6911 

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 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

Neighbor Device ID

Identifier of a device connected to this port discovered by CDP protocol or LLDP

Neighbor IP Address

IP address of the neighbor device discovered by CDP protocol

Neighbor Port

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

Port Information

Speed and duplex information


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.

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 30 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 Web page of the phone. Table 6-6 describes the status messages that may be displayed.

Debug Display—Displays debug messages that might be useful to the Cisco Technical Assistance Center (TAC) if you require assistance with troubleshooting.

Status Messages

The Status Messages web page displays up to 30 of the most recent status messages that the phone has generated since it was last powered up. You can access the Status Messages web page even if the phone is not running. Table 6-6 describes the status messages. This table also includes possible explanations and actions to troubleshoot errors.

Table 6-6 Status Messages on the Cisco Unified IP Phone 6900 Series Phones 

Message
Description
Possible Explanation and Action

CFG file not found

The name-based and default configuration file was not found on the TFTP Server.

The configuration file for a phone is created when the phone is added to the Cisco Unified Communications Manager database. If the phone has not been added to the Cisco Unified Communications Manager database, the TFTP server generates a CFG File Not Found response.

Phone is not registered with Cisco Unified Communications Manager.

You must manually add the phone to Cisco Unified Communications Manager if you are not allowing phones to auto-register. See the "Adding Phones to the Cisco Unified Communications Manager Database" section for details.

If you are using DHCP, verify that the DHCP server is pointing to the correct TFTP server.

If you are using static IP addresses, check the TFTP server configuration.

CFG TFTP Size Error

The configuration file is too large for the file system on the phone.

Power cycle the phone.

Checksum Error

Downloaded software file is corrupted.

Obtain a new copy of the phone firmware and place it in the TFTPPath directory. You should only copy files into this directory when the TFTP server software is shut down, otherwise the files may be corrupted.

DHCP timeout

DHCP server did not respond.

Network is busy—The errors should resolve themselves when the network load reduces.

No network connectivity between the DHCP server and the phone—Verify the network connections.

DHCP server is down—Check the DHCP server configuration.

Errors persist—Consider assigning a static IP address.

DNS timeout

DNS server did not respond.

Network is busy—The errors should resolve themselves when the network load reduces.

No network connectivity between the DNS server and the phone—Verify the network connections.

DNS server is down—Check the DNS server configuration.

DNS unknown host

DNS could not resolve the name of the TFTP server or Cisco Unified Communications Manager.

Verify that the host names of the TFTP server or Cisco Unified Communications Manager are configured properly in DNS.

Consider using IP addresses rather than host names.

Duplicate IP

Another device is using the IP address assigned to the phone.

If the phone has a static IP address, verify that you have not assigned a duplicate IP address.

If you are using DHCP, check the DHCP server configuration.

Error update locale

One or more localization files could not be found in the TFTPPath directory or were not valid. The locale was not changed.

From Cisco Unified Operating System Administration, check that the following files are located within subdirectories in the TFTP File Management:

Located in subdirectory with the same name as network locale:

tones.xml

Located in subdirectory with the same name as user locale:

glyphs.xml

dictionary.xml

kate.xml

File not found

The phone cannot locate, on the TFTP server, the phone load file that is specified in the phone configuration file.

From Cisco Unified Operating System Administration, make sure that the phone load file is on the TFTP server, and that the entry in the configuration file is correct.

IP address released

The phone has been configured to release its IP address.

The phone remains idle until it is power cycled or you reset the DHCP address.

Load ID incorrect

Load ID of the software file is of the wrong type.

Check the load ID assigned to the phone (from Cisco Unified Communications Manager, choose Device > Phone). Verify that the load ID is entered correctly.

Load rejected HC

The application that was downloaded is not compatible with the phone's hardware.

Occurs if you were attempting to install a version of software on this phone that did not support hardware changes on this newer phone.

Check the load ID assigned to the phone (from Cisco Unified Communications Manager, choose Device > Phone). Re-enter the load displayed on the phone.

No default router

DHCP or static configuration did not specify a default router.

If the phone has a static IP address, verify that the default router has been configured.

If you are using DHCP, the DHCP server has not provided a default router. Check the DHCP server configuration.

No DNS server IP

A name was specified but DHCP or static IP configuration did not specify a DNS server address.

If the phone has a static IP address, verify that the DNS server has been configured.

If you are using DHCP, the DHCP server has not provided a DNS server. Check the DHCP server configuration.

TFTP access error

TFTP server is pointing to a directory that does not exist.

If you are using DHCP, verify that the DHCP server is pointing to the correct TFTP server.

If you are using static IP addresses, check the TFTP server configuration.

TFTP error

The phone does not recognize an error code provided by the TFTP server.

Contact the Cisco TAC.

TFTP file not found

The requested load file (.bin) was not found in the TFTPPath directory.

Check the load ID assigned to the phone (from Cisco Unified Communications Manager, choose Device > Phone). Verify that the TFTPPath directory contains a .bin file with this load ID as the name.

TFTP server not authorized

The specified TFTP server could not be found in the phone's CTL.

The DHCP server has the wrong configuration file for the TFTP server. In this case, update the TFTP server configuration to specify the correct TFTP server. The CTL file was made and then the TFTP server address changed. In this case, regenerate the CTL file.

If the phone is using a static IP address, the phone may be configured with the wrong TFTP server address. In this case, enter the correct TFTP server address in the Network Configuration menu on the phone.

If the TFTP server address is correct, there may be a problem with the CTL file. In this case, run the CTL client and update the CTL file, making sure that the proper TFTP servers are included in this file.

TFTP timeout

TFTP server did not respond.

Network is busy—The errors should resolve themselves when the network load reduces.

No network connectivity between the TFTP server and the phone—Verify the network connections.

TFTP server is down—Check the TFTP server configuration.

Timed Out

Supplicant attempted 802.1X transaction but timed out to due the absence of an authenticator.

Authentication typically times out if 802.1X is not configured on the switch.

Version error

The name of the phone load file is incorrect.

Make sure that the phone load file has the correct name.

XmlDefault.cnf.xml, or .cnf.xml corresponding to the phone device name

Name of the configuration file.

None. This is an informational message indicating the name of the configuration file for the phone.


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. Cisco Unified IP Phone 6900 Series phones use only Stream 1.

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, and then click the Stream 1 hyperlink.

Table 6-7 describes the items in the Streaming Statistics areas.

Table 6-7 Streaming Statistics Area Items 

Item
Description

Remote Address

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

Local Address

IP address and UDP 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 Sent1

Number of times the RTCP Sender Report have been sent.

Sender Report Time Sent1

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

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 Sent1

Number of times the RTCP Receiver Reports have been sent.

Rcvr Report Time Sent1

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

Rcvr Packets

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

Rcvr Octets

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

Latency1

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.

Max Jitter

Maximum value of instantaneous jitter, in milliseconds.

Sender Size

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

Sender Reports Received1

Number of times RTCP Sender Reports have been received.

Sender Report Time Received1

Last time at which an RTCP Sender Report was 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 Received1

Number of times RTCP Receiver Reports have been received.

Rcvr Report Time Received1

Last time at which an RTCP Receiver Report was received.

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


Related Topics

"Configuring Settings on the Cisco Unified IP Phone" chapter