Yealink SIP-T48G Administrator's Guide

Configuring Advanced Features
607
messages to a central voice quality report collector. Two mechanisms for voice quality
monitoring are supported by Yealink IP phones:
 RTCP-XR
 VQ-RTCPXR
The RTCP-XR mechanism, complaint with RFC 3611-RTP Control Extended Reports
(RTCP-XR), provides the metrics contained in RTCP-XR packets for monitoring the quality
of calls. These metrics include network packet loss, delay metrics, analog metrics and
voice quality metrics.
Procedure
RTCP-XR can be configured using the configuration files.
Configuration
File
<y0000000000xx>.cfg
Configure RTCP-XR.
Parameter:
voice.rtcp_xr.enable
phone_setting.rtcp_xr_report.enable
Details of Configuration Parameters:
Parameters
Permitted Values
Default
voice.rtcp_xr.enable
0 or 1
0
Description:
Enables or disables the IP phone to send RTCP-XR packets.
0-Disabled
1-Enabled
Note: If you change this parameter, the IP phone will reboot to make the change
take effect.
Web User Interface:
None
Phone User Interface:
None
phone_setting.rtcp_xr_report.enable
0 or 1
0
Description:

Yealink SIP-T48G Specifications

General

Expansion module support	Yes
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	-
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
AC adapter input voltage	100 - 240 V
Number of handles included	1 pc(s)

Weight and Dimensions

Width	266 mm
Height	185 mm