Yealink SIP-T2XP - Page 149

Configuring Basic Features
133
INBAND
DTMF digits are transmitted within the audio of the IP phone conversation. It uses the
same codec as your voice and is audible to conversation partners.
SIP INFO
DTMF digits are transmitted by the SIP INFO messages when the voice stream is
established after a successful SIP 200 OK-ACK message sequence. The SIP INFO
message is sent along the signaling path of the call. The SIP INFO message can support
transmitting DTMF digits in three ways: DTMF, DTMF-Relay and Telephone-Event.
Procedure
Configuration changes can be performed using the configuration files or locally.
Configuration File
<MAC>.cfg
Configure the method of
transmitting DTMF digit and the
payload type.
For more information, refer to
DTMF on page 343.
<y0000000000xx>.cfg
Configure the number of times
for the IP phone to send the end
RTP Event packet.
For more information, refer to
DTMF on page 343.
Local
Web User Interface
Configure the method of
transmitting DTMF digits and
the payload type.
Navigate to:
http://<phoneIPAddress>/servl
et?p=account-adv&q=load&ac
c=0
Configure the number of times
for the IP phone to send the end
RTP Event packet.
Navigate to:
http://<phoneIPAddress>/servl
et?p=features-general&q=loa
d
To configure the method of transmitting DTMF digits via web user interface:
1. Click on Account.
2. Select the desired account from the pull-down list of Account.