Aastra Telecom 480I CT manual Line Settings, Dtmf Method, Silence Suppression

Administrator Options

Administrator Level Options

•DTMF Method

(not configurable via IP phone UI). Sets the dual-tone multifrequency (DTMF) method to use on the IP phone on a global or per-line basis. Valid values are 0 (RTP), 1 (SIP INFO), or 2 (BOTH). Default is 0 (RTP). Configurable on a global and per-line basis.

•Silence Suppression

Enables or disables the phone to use the negotiated silence suppression setting.

Line Settings

An administrator can configure multiple lines on the IP phone with the same configuration (global) or a different configuration (per-line). The following table provides the number of lines available for each IP phone model.

IP Phone	Available
Model	Lines
480i	9
480i CT	9
9112i	1
9133i	9

A user or administrator can then assign the line to a specific softkey (480i/480i CT) or programmable key (9112i/9133i). The available softkeys also depends on the IP phone model as shown in the following table.

IP		Program
	Softkeys	mable
Phone		Keys
Model	Available	Available
480i	20	-
480i CT	20	-
9112i	-	2
9133i	-	7

The softkey or programmable key can be set to use a specific function. Available functions depend on the IP phone model.

Administrator Options

41-001129-00 Rev 09, Release 1.4.1 3-19