Early Media - Yealink SIP T46G Administrator's Manual

To configure the return code when refusing a call via web user interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of Return Code Refuse.
3. Click Confirm to accept the change.
Early media refers to media (e.g., audio and video) played to the caller before a SIP
call is actually established. Current implementation supports early media through the
183 message. When the caller receives a 183 message with SDP before the call is
established, a media channel is established. This channel is used to provide the early
media stream to the caller.
The 180 ring workaround feature defines whether to deal with the 180 message
received after the 183 message. When the caller receives a 183 message, it suppresses
any local ringback tone and begins to play the media received. 180 ring workaround
allows the IP phones to resume and play the local ringback tone upon a subsequent 180
message received.
Procedure
180 ring workaround can be configured using the configuration files or locally.
Configuration File <y000000000028>.cfg
Configuring Basic Features
http://<phoneIPAddress>/servlet
?p=features-general&q=load
Configure the 180 ring
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