Aastra Telecom 55I, 57I CT, 53I manual Sip dtmf method

Configuration Parameters

Operational, Basic, and Advanced Parameters

Parameter –	Aastra Web UI		Advanced Settings->Global SIP->RTP Settings
sip dtmf method	Configuration Files		aastra.cfg, <mac>.cfg
DTMF Method
(in Web UI)
Description	Sets the Dual-tone multifrequency (DTMF) method to use on the IP
	phone.
Format	Boolean
Default Value	0	(RTP)
Range	0	(RTP)
	1	(SIP INFO)
	2	(BOTH)
Example	sip dtmf method: 1
Parameter –	Aastra Web UI		Advanced Settings->Global SIP->
sip srtp mode			RTP Settings
RTP Encryption	Configuration Files		aastra.cfg, <mac>.cfg
(in Web UI)
Description	This parameter determines if SRTP is enabled on this IP phone, as
	follows:
	• 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	(SRTP Disabled)
Range	0	(SRTP Disabled)
	1	(SRTP Preferred)
	2	(SRTP Only)
Example	sip srtp mode: 1

Appendix A

41-001160-00, Release 2.1, Rev 04 A-79