Yealink T5 Series Administrator's Guide

Audio Features
297
Note: It works only if “features.dtmf.replace_tran” is set to 1 (Enabled).
Permitted
Values
String within 32 characters
Default Blank
Web UI Features->General Information->Tran Send DTMF
Local DTMF Tone
Local DTMF tone allows the phones to play a local DTMF tone during an active call. If this feature is enabled, you can
hear the DTMF tone when pressing the IP phone’s keypad during a call.
Topic
Local DTMF Tone Configuration
Local DTMF Tone Configuration
The following table lists the parameter you can use to configure the local DTMF tone.
Parameter features.play_local_dtmf_tone_enable <y0000000000xx>.cfg
Description It enables or disables the phone to play a local DTMF tone.
Permitted
Values
0-Disabled
1-Enabled, you can hear the DTMF tone when pressing the phone’s keypad during a call.
Default 1
Web UI Features->General Information->Play Local DTMF Tone
Voice Quality Monitoring (VQM)
Voice quality monitoring feature allows the phones to generate various quality metrics for listening quality and con-
versational quality. These metrics can be sent between the phones in RTCP-XR packets. These metrics can also be sent
in SIP PUBLISH messages to a central voice quality report collector. Yealink phones support two mechanisms for voice
quality monitoring: RTCP-XR and VQ-RTCPXR.
Topics
RTCP-XR
VQ-RTCPXR
RTCP-XR
The RTCP-XR mechanism, compliant with RFC 3611-RTP Control Extended Reports (RTCP XR), provides the metrics con-
tained in RTCP-XR packets for monitoring the quality of calls. These metrics include network packet loss, delay metrics,
analog metrics and voice quality metrics.
Topic
RTCP-XR Configuration
RTCP-XR Configuration
The following table lists the parameters you can use to configure the RTCP-XR.
Parameter
voice.rtcp_xr.enable
[1]
<y0000000000xx>.cfg

Yealink T5 Series Specifications

General

Brand	Yealink
Model	T5 Series
Category	IP Phone
Language	English