AASTRA 480i 사용자 설명서

Advanced Operational Features

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41-001129-00 Rev 09, Release 1.4.1  

IP Phone Administrator Guide

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 

..