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Configuring Basic Features
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2.
Select the desired value from the pull-down list of Return Code When 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 for the caller.
180 ring workaround 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 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
<y0000000000xx>.cfg
Configure 180 ring workaround.
Parameter:
phone_setting.is_deal180
Local
Web User Interface
Configure 180 ring workaround.
Navigate to:
http://<phoneIPAddress>/servlet
?p=features-general&q=load
Summary of Contents for Yealink SIP-T48G
Page 1: ...啊 ...
Page 12: ...Microsoft Lync Edition Administrator s Guide for SIP T2_Series and T4_Series IP Phones xii ...
Page 19: ...Product Overview 7 Admin User configuration mode 802 1X authentication ...
Page 20: ...Microsoft Lync Edition Administrator s Guide for SIP T2_Series and T4_Series IP Phones 8 ...
Page 248: ...Microsoft Lync Edition Administrator s Guide for SIP T2_Series and T4_Series IP Phones 236 ...
Page 266: ...Microsoft Lync Edition Administrator s Guide for SIP T2_Series and T4_Series IP Phones 254 ...