Cisco Unified Ip Phone 8961, 9951, And 9971 Administration Guide For Cisco Unified Communications Manager - Cisco 9971 Administration Manual

Cisco Unified IP Phone Status
A single call can use multiple voice streams, but data is captured for only the last voice stream. A voice stream
is a packet stream between two endpoints. If one endpoint is put on hold, the voice stream stops even though
the call is still connected. When the call resumes, a new voice packet stream begins, and the new call data
overwrites the former call data.
Procedure
Step 1
Press Applications.
Step 2 Select Administrator Settings > Status > Call Statistics.
Step 3 To exit the Call Statistics screen, press Exit.
Call Statistics fields
The following table describes the items on the Call Statistics screen.
Table 40: Call Statistics items for the Cisco Unified Phone
Item
Rcvr Codec
Sender Codec
Rcvr Size
Sender Size
Rcvr Packets
Sender Packets
Avg Jitter
Max Jitter

Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager

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Description
Type of received voice stream (RTP streaming audio from codec): G.729,
G.722, G.711 mu-law, G.711 A-law, and iLBC.
Type of transmitted voice stream (RTP streaming audio from codec): G.729,
G.722, G.711 mu-law, G.711 A-law, and iLBC.
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 that were received since voice stream opened.
Note This number is not necessarily identical to the number of RTP voice
packets that were received since the call began because the call
might have been placed on hold.
Number of RTP voice packets that were transmitted since voice stream
opened.
Note This number is not necessarily identical to the number of RTP voice
packets that were 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), in milliseconds, that was observed since
the receiving voice stream opened.
Maximum jitter, in milliseconds, that was observed since the receiving voice
stream opened.