Aastra 9000i Series Administrator's Manual page 145

Parameter In
IP Phone UI Aastra Web UI
N/A RTP Encryption
(Global and
Per-Line)
N/A Silence Suppression sip silence suppression
3-58
Parameter in Parameters in
Configuration Files
sip srtp mode
(global)
sip lineN srtp mode
(per-line)
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 gener-
ated/accepted.
For more information, see Chapter 4,
Transport Protocol (RTP) Settings"
Silence suppression is enabled by default on the
IP phones. The phone negotiates whether or not to
use silence suppression. Disabling this feature
forces the phone to ignore any negotiated value.
For more information, see Chapter 4,
Transport Protocol (RTP) Settings"
41-001343-01 Rev 02, Release 3.2.2
"Real-time
on page 4-90.
"Real-time
on page 4-90.