Cisco 7945G Administration Manual page 145

Chapter 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone
Select Status.
Step 2
Select Call Statistics.
Step 3
The Call Statistics screen displays these items:
Table 7-6
Item
Rcvr Codec
Sender Codec
Rcvr Size
Sender Size
Rcvr Packets
Sender Packets
Avg Jitter
Max Jitter
Rcvr Discarded
Rcvr Lost Packets
Voice Quality Metrics
MOS LQK
Avg MOS LQK
Min MOS LQK
Cisco Unified IP Phone 7965G and 7945G Administration Guide for Cisco Unified Communications Manager 6.1(3)
OL-17755-01
Call Statistics Items
Description
Type of voice stream received (RTP streaming audio from codec): G.729,
G.728/iLBC, G.711 u-law, G.711 A-law, or Lin16k.
Type of voice stream transmitted (RTP streaming audio from codec):
G.729, G.728/iLBC, G.711 u-law, G.711 A-law, or Lin16k.
Size of voice packets, in milliseconds, in the receiving voice stream (RTP
streaming audio).
Size of voice packets, in milliseconds, in the transmitting voice stream.
Number of RTP voice packets received since voice stream was opened.
Note This number is not necessarily identical to the number of RTP voice
packets received since the call began because the call might have
been placed on hold.
Number of RTP voice packets transmitted since voice stream was opened.
This number is not necessarily identical to the number of RTP voice
Note
packets transmitted since the call began because the call might have
been placed on hold.
Estimated average RTP packet jitter (dynamic delay that a packet
encounters when going through the network) observed since the receiving
voice stream was opened.
Maximum jitter observed since the receiving voice stream was opened.
Number of RTP packets in the receiving voice stream that have been
discarded (bad packets, too late, and so on).
The phone will discard payload type 19 comfort noise packets that
Note
are generated by Cisco Gateways, which will increment this
counter.
Missing RTP packets (lost in transit).
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 the
"Monitoring the Voice Quality of Calls" section on page
The MOS LQK score can vary based on the type of codec that the
Note
Cisco Unified IP Phone uses.
Average MOS LQK score observed for the entire voice stream.
Lowest MOS LQK score observed from start of the voice stream.
Status Menu
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