Local Dtmf Tone; Local Dtmf Tone Configuration; Voice Quality Monitoring (Vqm); Rtcp-Xr - Yealink SIP-T5 Series Administrator's Manual

Administrator's Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
Default 0
Web UI Features > General Information > DTMF Replace Tran
Parameter features.dtmf.transfer
It configures the DTMF sequences to be transmitted to perform call transfer.
Valid values are: 0-9, *, # and A-E.
Description
Note: It works only if "features.dtmf.replace_tran" is set to 1 (Enabled).
Permitted
String within 32 characters
Values
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
Description It enables or disables the phone to play a local DTMF tone.
0-Disabled
Permitted
Values
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
rics 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.
Topic
RTCP-XR Configuration
183
<y0000000000xx>.cfg
<y0000000000xx>.cfg
RFC 3611-RTP Control Extended Reports (RTCP XR), provides the met-