Cisco 7931G Administration Guide

8-12
Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP)
OL-20798-01
Chapter 8 Monitoring the Cisco Unified IP Phone Remotely
Streaming Statistics
Sender Packets Total number of RTP data packets transmitted by the phone since starting this connection. The value
is 0 if the connection is set to receive only mode.
Sender Octets Total number of payload octets transmitted in RTP data packets by the phone since starting this
connection. The value is 0 if the connection is set to receive only mode.
Sender Codec Type of audio encoding used for the transmitted stream.
Sender Reports Sent
1
Number of times the RTCP Sender Reports have been sent.
Sender Report Time
Sent
1
Internal time stamp indicating when a RTCP Sender Report was sent.
Rcvr Lost Packets Total number of RTP data packets that have been lost since starting receiving data on this
connection. Defined as the number of expected packets less the number of packets actually received,
where the number of received packets includes any that are late or duplicate. The value displays as
0 if the connection was set to send-only mode.
Avg Jitter Estimate of mean deviation of the RTP data packet inter-arrival time, measured in milliseconds. The
value displays as 0 if the connection was set to send-only mode.
Rcvr Codec Type of audio encoding used for the received stream.
Rcvr Reports Sent
1
Number of times the RTCP Receiver Reports have been sent.
Rcvr Report Time
Sent
1
Internal time stamp indicating when a RTCP Receiver Report was sent.
Rcvr Packets Total number of RTP data packets received by the phone since starting receiving data on this
connection. Includes packets received from different sources if this is a multicast call. The value
displays as 0 if the connection was set to send-only mode.
Rcvr Octets Total number of payload octets received in RTP data packets by the device since starting reception
on the connection. Includes packets received from different sources if this is a multicast call. The
value displays as 0 if the connection was set to send-only mode.
MOS LQK Score that is an objective estimate of the mean opinion score (MOS) for listening quality (LQK) that
rates from 5 (excellent) to 1 (bad). This score is based on audible concealment events due to frame
loss in the preceding 8-second interval of the voice stream. For more information, see Monitoring
the Voice Quality of Calls, page 9-14.
Note The MOS LQK score can vary based on the type of codec that the Cisco Unified
IP Phone uses.
Avg MOS LQK Average MOS LQK score observed for the entire voice stream.
Min MOS LQK Lowest MOS LQK score observed from start of the voice stream.
Max MOS LQK Baseline or highest MOS LQK score observed from start of the voice stream.
These codecs provide the following maximum MOS LQK score under normal conditions with no
frame loss:
• G.711 gives 4.5
• G.729 A /AB gives 3.8
• G.728/iLBC gives 3.9
MOS LQK Version Version of the Cisco proprietary algorithm used to calculate MOS LQK scores.
Cumulative Conceal
Ratio
Total number of concealment frames divided by total number of speech frames received from start
of the voice stream.
Table 8-5 Streaming Statistics Area Items (continued)
Item Description

Cisco 7931G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Electromagnetic compatibility	FCC Part 15 (CFR 47) Class B, ICES-003 Class B, EN55022 Class B, CISPR22 Class B, AS/NZS CISPR 22 Class B, CISPR 24, VCCI Class B, EN55024, EN 50082-1, EN 61000-3-2, EN 61000-3-3, EN 61000-6-1
Wi-Fi	No
Networking standards	IEEE 802.1Q, IEEE 802.1af, IEEE 802.1p
Ethernet LAN interface type	Fast Ethernet
Supported network protocols	DHCP, TFTP, CDP
Lines quantity	24 lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Voice codecs	G.711a, G.729A, G.729B, G.729ab
Volume control	Digital
Display resolution	192 x 64 pixels
Display number of lines	3 lines
Display number of colors	Monochrome
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Safety	(UL) 60950, (CSA) C22.2 No. 60950, EN 60950, IEC 60950, AS/NZS60950, TS 001
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	229 mm
Width	203 mm
Height	178 mm
Weight	1360 g