Operational, Basic, and Advanced Parameters
41-001160-00, Release 2.1, Rev 04 A-79
Configuration Parameters
Appendix A
Parameter –
sip dtmf method
DTMF Method
(in Web UI)
Aastra Web UI Advanced Settings->Global SIP->RTP Settings
Configuration Files aastra.cfg, <mac>.cfg
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 –
sip srtp mode
RTP Encryption
(in Web UI)
Aastra Web UI Advanced Settings->Global SIP->
RTP Settings
Configuration Files aastra.cfg, <mac>.cfg
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
