Advanced operational features – Aastra Telecom SIP 480I User Manual
Page 258
Advanced Operational Features
6-10
41-001129-00 Rev 09, Release 1.4.1
IP Phone Administrator Guide
Advanced Operational Features
Aastra Web UI
Step Action
1
Click on Advanced Settings->Global SIP->RTP Settings.
2
Enable the "Two Call Support" field by checking the check box.
(Disable this field by unchecking the box).
3
Click
to save your settings.
Note: The session prompts you to restart the IP phone to apply the configuration settings.
4
Select Operation->Reset and click
..
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