AASTRA AMC 3 for Android EN - Manual (Page 46)

12 Administrator Settings
12.3.1 Registrar and Port Settings
The IP address and port that have to be entered here, as well as your user credentials,
should be given to you by your system administrator.
12.3.2 Username and Password
The Username is the username that has been registered on the AMCC. Usually it is
your corporate phone number (to make it unique in the system). The Password is the
one that belongs to your username in the AMCC.
12.3.3 Protocol (Transport) and Preferred VoIP Codec
These settings should only be altered by administrators.
Select UDP or TCP as the transport protocol. TCP is preferable for longer battery life.
The preferred VoIP Codec can be set to U-law or iLBC. iLBC required less data which
makes 3G usage less expensive (depending on your data plan, refer to section
5 ).
Note: The iLBC is only supported on newer devices (with ARM version 7 or later). The
iLBC codec will not be offered in the settings section if the device doesn’t meet the
requirements.
Transport Protocol
The transport protocol should be TCP only! The reasons are system performance
and battery time.
12.4 Echo Cancellation
This setting activates an echo filter to cancel any echo during a call. It is by default
activated to improve call quality.
12.4.1 Mic Volume
Increase or decrease the volume of your microphone, i.e. the input volume, with this
setting for VoIP calls. The default setting is "0". The range from -4 to 4 is supported.
This settins does not apply to non-VoIP calls!
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