Aastra Telecom 41-001343-02 manual Per-Line Settings, Take effect

Operational, Basic, and Advanced Parameters

Parameter –	Configuration Files
sip remove silence suppression offer	aastra.cfg, <model>.cfg, <mac>.cfg
Description	Specifies whether or not the silence suppression attribute should be included in the
	Session Description Protocol (SDP) offer.
	If enabled, the silence suppression attribute will be removed from the SDP offer. If dis-
	abled, the attribute will not be removed from the SDP offer.
	Note:
	If the value of this parameter has changed, a reboot will be required for the change to
	take effect.
Format	Boolean
Default Value	0	(disabled)
Range	0	(disabled)
	1	(enabled)
Example	sip remove silence suppression offer: 1

Per-Line Settings

Parameter –	Configuration Files
sip lineN dtmf method	aastra.cfg, <model>.cfg, <mac>.cfg
(N is a line number from 1 to 9)
Description	Sets the Dual-tone multifrequency (DTMF) method to use on the IP phone for a specific
	line.
Format	Integer
Default Value	0	(RTP)
Range	0	(RTP)
	1	(SIP INFO)
	2	(BOTH)
Example	sip line1 dtmf method: 1

Parameter –	Configuration Files
sip lineN srtp mode	aastra.cfg, <model>.cfg, <mac>.cfg
(N is a line number from 1 to 9)
Description	This parameter determines if SRTP is enabled on this line, as follows:
	• If set to -1, then use the global setting for this line. (This is the default setting.)
	• If set to 0, then disable SRTP.
	• If set to 1 then SRTP calls are preferred.
	• If set to 2, then SRTP calls only are generated/accepted.
Format	Integer
Default Value	0 (disabled)
Range	-1
	0
	1
	2
Example	sip line1 srtp mode: 1

A-103 41-001343-02 REV04 – 05.2014