Aastra 9000i Series, Administrator'S Manual

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3-58 41-001343-01 Rev 02, Release 3.2.2
N/A RTP Encryption
(Global and
Per-Line)
sip srtp mode
(global)
sip lineN srtp mode
(per-line)
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, “Real-time
Transport Protocol (RTP) Settings” on page 4-90 .
N/A Silence Suppression sip silence suppression 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, “Real-time
Transport Protocol (RTP) Settings” on page 4-90 .
Parameter In
IP Phone UI
Parameter in
Aastra Web UI
Parameters in
Configuration Files
Description