Display Call Statistics Screen; Call Statistics Items - Cisco 7975G Software Manual

Call Statistics Screen
A single call can have 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.

Display Call Statistics Screen

To display the Call Statistics screen for information about the last voice stream, follow these steps:
Procedure
Step 1 Press Settings.
Step 2 Select Status.
Step 3 Select Call Statistics.

Call Statistics Items

The following table explains the items displayed in the Call Statistics screen:
Table 47: Call Statistics Items
Item
Rcvr Codec
Sender Codec
Rcvr Size
Sender Size
Rcvr Packets
Sender Packets
Avg Jitter
Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G Administration Guide for Cisco Unified
Communications Manager 9.0 (SCCP and SIP)
192
Description
Type of voice stream received (RTP streaming audio from codec): G.729,
G.711 Mu-law, G.711 A-law, or Lin16k.
Type of voice stream transmitted (RTP streaming audio from codec): G.729,
G.728/iLBC, G.711 Mu-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 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 opened.
This number is not necessarily identical to the number of RTP
Note
voice 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
opened.
Model Information, Status, and Statistics