Cisco IP Phone 6851 User Manual

To display the Call Statistics screen for information about the latest voice stream, follow these steps:
Procedure
Step 1
Press Applications .
Step 2
Select Status > Phone Status > Call Statistics.
Step 3
To exit the Status menu, press Back .
Call Statistics Fields
The following table describes the items on the Call Statistics screen.
Table 16: Call Statistics Items for the Cisco IP Phone
DescriptionItem
Type of received voice stream (RTP streaming audio from codec): G.729,
G.722, G.711 mu-law, G.711 A-law, OPUS, and iLBC.
Receiver Codec
Type of transmitted voice stream (RTP streaming audio from codec): G.729,
G.722, G.711 mu-law, G.711 A-law, OPUS, and iLBC.
Sender Codec
Size of voice packets, in milliseconds, in the receiving voice stream (RTP
streaming audio).
Receiver Size
Size of voice packets, in milliseconds, in the transmitting voice stream.Sender Size
Number of RTP voice packets that were received since voice stream opened.
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.
Note
Rcvr Packets
Number of RTP voice packets that were transmitted since voice stream
opened.
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.
Note
Sender Packets
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.
Avg Jitter
Maximum jitter, in milliseconds, that was observed since the receiving voice
stream opened.
Max Jitter
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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Cisco IP Phone Status

Cisco IP Phone 6851 Specifications

General

Brand	Cisco
Model	IP Phone 6851
Category	IP Phone
Language	English