AASTRA 53i Guia Do Utilizador

Advanced Operational Features

6-10

41-001160-00, Rev 01  Release 2.0  

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 

..