Справочник Пользователя для Aastra Telecom 53I

Advanced Operational Features

6-12

41-001160-00, Release 2.1, Rev 04  

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 

.