Yealink T21PE2 User Manual

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
364
Topic
Transmitting DTMF Digit Configuration
Transmitting DTMF Digit Configuration
The following table lists the parameters you can use to configure the transmitting DTMF digit.
Parameter
account.X.dtmf.type
[1]
<MAC>.cfg
Description It configures the DTMF type.
Permitted
Values
0-INBAND, DTMF digits are transmitted in the voice band.
1-RFC2833, DTMF digits are transmitted by RTP Events compliant to RFC 2833.
2-SIP INFO, DTMF digits are transmitted by the SIP INFO messages.
3-RFC2833 + SIP INFO, DTMF digits are transmitted by RTP Events compliant to RFC 2833 and the SIP
INFO messages.
Default 1
Web UI Account->Advanced->DTMF Type
Parameter
account.X.dtmf.dtmf_payload
[1]
<MAC>.cfg
Description
It configures the value of DTMF payload.
Note: It works only if “account.X.dtmf.type” is set to 1 (RFC2833) or 3 (RFC2833 + SIP INFO).
Permitted
Values
Integer from 96 to 127
Default 101
Web UI Account->Advanced->DTMF Payload Type(96~127)
Parameter
account.X.dtmf.info_type
[1]
<MAC>.cfg
Description
It configures the DTMF info type.
Note: It works only if “account.X.dtmf.type” is set to 2 (SIP INFO) or 3 (RFC2833 + SIP INFO).
Permitted
Values
1-DTMF-Relay
2-DTMF
3-Telephone-Event
Default 1
Web UI Account->Advanced->DTMF Info Type
Parameter features.dtmf.repetition <y0000000000xx>.cfg
Description It configures the repetition times for the IP phone to send the end RTP Event packet during an active call.
Permitted
Values
1, 2 or 3
Default 3
Web UI Features->General Information->DTMF Repetition
Parameter
features.dtmf.duration
[2]
<y0000000000xx>.cfg
Description
It configures the duration time (in milliseconds) for each digit when a sequence of DTMF tones is played

Yealink T21PE2 Specifications

General

Brand	Yealink
Model	T21PE2
Category	IP Phone
Language	English