Cisco 7800 Series Administration Manual page 223

Cisco IP Phone Troubleshooting
Item
Sender Codec
Receiver Size
Sender Size
Rcvr Packets
Sender Packets
Avg Jitter
Max Jitter
Receiver Discarded
Description
Type of transmitted voice stream (RTP streaming
audio from codec):
• G.729
• G.722
• G.711 mu-law
• G.711 A-law
• OPUS
• 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
Number of RTP voice packets that were transmitted
since voice stream opened.
Note
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.
Number of RTP packets in the receiving voice stream
that were discarded (bad packets, too late, and so on).
Note
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
Call Statistics Fields
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.
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.
The phone discards payload type 19
comfort noise packets that Cisco Gateways
generate, because they increment this
counter.
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