Aastra Telecom 53I - Manual (Page 41)

Security Features
RN-001029-00, Rev 03, Release 2.1 35
5i Series IP Phone Release Notes
Configuring SRTP Using Configuration Files
You use the following parameters to configure SRTP in the configuration files:
Global Parameter
• sip srtp mode
Per-Line Parameter
• sip lineN srtp mode
Global Parameter
Parameter –
sip srtp mode Aastra Web UI Advanced Settings->Global SIP->
RTP Settings
Configuration Files aastra.cfg, .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 (disabled)
Range 0
1
2
Example sip srtp mode: 1