Cisco Systems IP Phone OL 21011 01 User Manual

C H A P T E R  
8
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 Viewing  
Model Information, Status, and Statistics on the Cisco Unified IP Phone.  
For more information about troubleshooting the Cisco Unified IP Phone, see Troubleshooting and  
Maintenance.  
This chapter includes these topics:  
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Chapter 8 Monitoring the Cisco Unified IP Phone Remotely  
Disabling and Enabling Web Page Access  
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 Streaming Statistics, 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.  
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.  
To enable or disable access to the web pages for a phone, follow these steps from Cisco Unified  
Communications Manager Administration.  
Procedure  
Step 1  
Step 2  
Step 3  
Step 4  
Choose Device > Phone.  
Specify the criteria to find the phone and click Find, or click Find to display a list of all phones.  
Click the device name to open the Phone Configuration window for the device.  
Scroll down to the Product Specific Configuration section. 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  
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  
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  
Host Name  
Phone DN  
App Load ID  
Boot Load ID  
Version  
Media Access Control (MAC) address of the phone  
Unique, fixed name that is automatically assigned to the phone based on its MAC address  
Directory number assigned to the phone  
Identifier of the firmware running on the phone  
Identifier of the factory-installed load running on the phone  
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  
Serial Number  
Model Number  
Message Waiting  
UDI  
Revision value of the phone hardware  
Serial number of the phone  
Model number of the phone  
Indicates if there is a voice message waiting on any line for this phone  
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  
The Version Identifier field might display a blank screen if the user is 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  
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Network Configuration  
Table 8-1  
Device Information Area Items (continued)  
Description  
Item  
Time  
Time obtained from the Date/Time Group in Cisco Unified Communications Manager to which the  
phone belongs  
Time Zone  
Date  
Time zone obtained from the Date/Time Group in Cisco Unified Communications Manager to which  
the phone belongs  
Date obtained from the Date/Time Group in Cisco Unified Communications Manager to which the  
phone belongs  
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 Configuring Features,  
Templates, Services, and Users  
To display the Network Configuration area, access the web page for the phone as described in Accessing  
the Web Page for a Phone, 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  
Host Name  
Media Access Control (MAC) address of the phone.  
Host name that the DHCP server assigned to the phone.  
Name of the Domain Name System (DNS) domain in which the phone resides.  
Internet Protocol (IP) address of the phone.  
Domain Name  
IP Address  
Subnet Mask  
TFTP Server 1  
Subnet mask used by the phone.  
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  
Admin. VLAN ID  
Auxiliary Virtual Local Area Network (VLAN) configured on a Cisco Catalyst switch in  
which the phone is a member.  
Auxiliary VLAN in which the phone is a member.  
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Network Configuration  
Table 8-2  
Network Configuration Area Items (continued)  
Item  
Description  
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  
Directories URL  
Messages URL  
URL of the help text that appears on the phone.  
URL of the server from which the phone obtains directory information.  
URL of the server from which the phone obtains message services.  
URL of the server from which the phone obtains Cisco Unified IP Phone services.  
Indicates whether DHCP is being used by the phone.  
Services URL  
DHCP Enabled  
DHCP Address Released  
Indicates the setting of the DHCP Address Released option on the phone’s Network  
Configuration menu.  
Alternate TFTP  
Idle URL  
Indicates whether the phone is using an alternative TFTP server.  
URL that the phone displays when the phone has not been used for the time specified by  
Idle URL Time, and no menu is open.  
Idle URL Time  
Number of seconds that the phone has not been used and no menu is open before the XML  
service specified by Idle URL is activated.  
Proxy Server URL  
URL of proxy server, which makes HTTP requests to non-local host addresses on behalf of  
the phone HTTP client and provides responses from the non-local host to the phone HTTP  
client.  
Authentication URL  
URL that the phone uses to validate requests made to the phone web server.  
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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  
User Locale  
Backup TFTP server that the phone uses if the primary TFTP server is unavailable.  
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.  
Version of the user locale loaded on the phone.  
User Locale Version  
Network Locale Version  
PC Port Disabled  
Version of the network locale loaded on the phone.  
Indicates whether the PC port on the phone is enabled or disabled.  
Indicates whether the speakerphone is enabled on the phone.  
Indicates whether the phone learns MAC addresses from Gratuitous ARP responses.  
Speaker Enabled  
GARP Enabled  
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 IP classification for call control signaling.  
DSCP for Call Control  
DSCP for Configuration  
DSCP for Services  
Security Mode  
DSCP IP classification for any phone configuration transfer.  
DSCP IP classification for phone-based services.  
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.  
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Network Statistics  
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 Asset ID  
Identifies the asset ID assigned to the phone for inventory management.  
Wireless Headset  
Hookswitch Control  
Enables users to receive notifications of incoming calls and answer or end calls while  
working in a wireless environment.  
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  
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.  
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  
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Network Statistics  
Ethernet Information—Displays information about Ethernet traffic. Table 8-3 describes the items in  
this area.  
Access—Displays information about network traffic to and from the PC port on the phone. Table 8-4  
describes the items in this area.  
Network—Displays information about network traffic to and from the network (SW) port on the  
phone. Table 8-4 describes the items in this area.  
Table 8-3  
Ethernet Information Items  
Item  
Description  
Tx Frames  
Tx broadcast  
Tx multicast  
Tx unicast  
Rx Frames  
Rx broadcast  
Rx multicast  
Rx unicast  
RxPacketNoDes  
Total number of packets transmitted by the phone  
Total number of broadcast packets transmitted by the phone  
Total number of multicast packets transmitted by the phone  
Total number of unicast packets transmitted by the phone  
Total number of packets received by the phone  
Total number of broadcast packets received by the phone  
Total number of multicast packets received by the phone  
Total number of unicast packets received by the phone  
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  
Rx crcErr  
Rx alignErr  
Total number of packets received by the phone  
Total number of packets received with CRC failed  
Total number of packets received between 64 and 1522 bytes in length that have a bad  
Frame Check Sequence (FCS)  
Rx multicast  
Rx broadcast  
Rx unicast  
Total number of multicast packets received by the phone  
Total number of broadcast packets received by the phone  
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  
Rx longGood  
Rx longErr  
Total number of good packets received that are less than 64 bytes size  
Total number of good packets received that are greater than 1522 bytes in size  
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  
Rx size128 to255  
Total number of packets received, including bad packets, that are between 65 and 127  
bytes in size  
Total number of packets received, including bad packets, that are between 128 and 255  
bytes in size  
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Device Logs  
Table 8-4  
Access Area and Network Items (continued)  
Item  
Description  
Rx size256 to511  
Total number of packets received, including bad packets, that are between 256 and 511  
bytes in size  
Rx size512 to1023  
Rx size1024 to1518  
Total number of packets received, including bad packets, that are between 512 and 1023  
bytes in size  
Total number of packets received, including bad packets, that are between 1024 and 1518  
bytes in size  
Rx tokenDrop  
Tx excessDefer  
Tx lateCollision  
Total number of packets dropped due to lack of resources (for example, FIFO overflow)  
Total number of packets delayed from transmitting due to medium being busy  
Number of times that collisions occurred later than 512 bit times after the start of packet  
transmission  
Tx totalGoodPkt  
Tx Collisions  
Total number of good packets (multicast, broadcast, and unicast) received by the phone  
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  
Total number of multicast packets transmitted by the phone  
Total number of LLDP frames sent out from the phone  
Total number of LLDP frames that have been time out in cache  
Tx multicast  
LLDP FramesOutTotal  
LLDP AgeoutsTotal  
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  
LLDP FramesInTotal  
Total number of LLDP frames that received with one or more detectable errors  
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  
CDP Neighbor IP Address  
CDP Neighbor Port  
Identifier of a device connected to this port discovered by CDP protocol.  
IP address of the neighbor device discovered by CDP protocol.  
Neighbor device port to which the phone is connected discovered by CDP protocol.  
Identifier of a device connected to this port discovered by LLDP protocol.  
IP address of the neighbor device discovered by LLDP protocol.  
LLDP Neighbor Device ID  
LLDP Neighbor IP Address  
LLDP Neighbor Port  
Neighbor device port to which the phone is connected discovered by LLDP protocol.  
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  
Console Logs—Includes hyperlinks to individual log files. The console log files include debug and  
error messages received on the phone.  
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Streaming Statistics  
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  
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 streams. 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, 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  
Local Address  
Start Time  
IP address and UDP port of the destination of the stream.  
IP address and UPD port of the phone.  
Internal time stamp indicating when Cisco Unified Communications Manager requested  
that the phone start transmitting packets.  
Stream Status  
Host Name  
Indication of whether streaming is active or not.  
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  
Sender Report Time Sent1  
Rcvr Lost Packets  
Number of times the RTCP Sender Report have been sent.  
Internal time stamp indication when the last RTCP Sender Report was sent.  
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.  
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Streaming Statistics  
Table 8-5  
Item  
Streaming Statistics Area Items (continued)  
Description  
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  
MOS LQK  
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.  
Score that is an objective estimate of the mean opinion score (MOS) 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 9-15.  
Note  
The MOS LQK score can vary based on the type of codec that the  
Cisco Unified IP Phone uses.  
Avg MOS LQK  
Min MOS LQK  
Max MOS LQK  
Average MOS LQK score observed for the entire voice stream.  
Lowest MOS LQK score observed from start of the voice stream.  
Baseline or highest MOS LQK score observed from start of the voice stream.  
These codecs on the Cisco Unified IP Phones 7962G and 7942G 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  
These codecs on the Cisco Unified IP Phones 7961G/G-GE and 7941G/41G-GE provide  
the following maximum MOS LQK score under normal conditions with no frame loss:  
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  
Conceal Secs  
Highest interval concealment ratio from start of the voice stream.  
Number of seconds that have concealment events (lost frames) from the start of the voice  
stream (includes severely concealed seconds).  
Severely Conceal Secs  
Latency1  
Number of seconds that have more than 5 percent concealment events (lost frames) from  
the start of the voice stream.  
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.  
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Streaming Statistics  
Table 8-5  
Streaming Statistics Area Items (continued)  
Item  
Description  
Sender Size  
Sender Reports Received1  
RTP packet size, in milliseconds, for the transmitted stream.  
Number of times RTCP Sender Reports have been received.  
Last time at which an RTCP Sender Report was received.  
Sender Report Time  
Received1  
Rcvr Size  
RTP packet size, in milliseconds, for the received stream.  
RTP packets received from network but discarded from jitter buffers.  
Number of times RTCP Receiver Reports have been received.  
Rcvr Discarded  
Rcvr Reports Received1  
Rcvr Report Time Received1 Last time at which an RTCP Receiver Report was received.  
Voice Quality Metrics  
MOS LQK  
Score that is an objective estimate of the mean opinion score (MOS) 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 9-15.  
The MOS LQK score can vary based on the type of codec that the Cisco Unified IP Phone  
uses.  
Avg MOS LQK  
Min MOS LQK  
Max MOS LQK  
Average MOS LQK score observed for the entire voice stream.  
Lowest MOS LQK score observed from start of the voice stream.  
Baseline or highest MOS LQK score observed from start of the voice stream.  
These codecs for the Cisco Unified IP Phones 7962G and 7942G 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  
These codecs for the Cisco Unified IP Phones 7961G/G-GE and 7941G/G-GE provide the  
following maximum MOS LQK score under normal conditions with no frame loss:  
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.  
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  
Conceal Secs  
Highest interval concealment ratio from start of the voice stream.  
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.  
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP)  
OL-21011-01  
8-13  
 
Chapter 8 Monitoring the Cisco Unified IP Phone Remotely  
Streaming Statistics  
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  
Configuring Features, Templates, Services, and Users chapter  
Call Statistics Screen, page 7-13  
Monitoring the Voice Quality of Calls, page 9-15  
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP)  
OL-21011-01  
8-14  
 
 

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