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Aastra Telecom 53I User Manual

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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