Display Call Statistics Window; Call Statistics Fields - Cisco 7821 Administration Manual

Display Call Statistics Window

You can access the Call Statistics screen on the phone to display counters, statistics, and voice-quality metrics
of the most recent call.
Note You can also remotely view the call statistics information by using a web browser to access the Streaming
Statistics web page. This web page contains additional RTCP statistics that are not available on the phone.
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.
To display the Call Statistics screen for information about the latest voice stream, follow these steps:
Procedure
Step 1
Press Applications.
Step 2 Select Admin Settings.
Step 3 Select Status.
Step 4 Select Call Statistics.
Step 5
To exit the Call Statistics screen, press Exit.

Call Statistics Fields

The following table describes the items on the Call Statistics screen.
Table 19: Call Statistics Items for the Cisco IP Phone
Item
Rcvr Codec
Sender Codec
Rcvr Size
Sender Size
Rcvr Packets
Cisco IP Phone 7821, 7841, and 7861 Administration Guide for Cisco Unified Communications Manager 10.0 (SIP)
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.
This number is not necessarily identical to the number of RTP voice
Note
packets that were received since the call began because the call
might have been placed on hold.
Cisco IP Phone Status
157