Aastra 9143i Series Administrator's Manual page 160

IP Phone Administrator Guide
Administrator Level Options
Parameter In
IP Phone UI
N/A Customized Codec
Preference List
N/A DTMF Method
(Global and
Per-Line)
N/A RTP Encryption
(Global and
Per-Line)
N/A Silence Suppression sip silence suppression
3-68
Parameter in
Aastra Web UI Configuration Files
sip customized codec
sip dtmf method
(global)
sip lineN dtmf method
(per-line)
sip srtp mode
(global)
sip lineN srtp mode
(per-line)
Parameters in
Specifies a customized Codec
preference list which allows you to
use the preferred Codecs for this IP
phone.
For more information, see Chapter
4, "Real-time Transport Protocol
(RTP) Settings"
Sets the dual-tone multifrequency
(DTMF) method to use on the IP
phone on a global or per-line basis.
Valid values are 0 (RTP), 1 (SIP
INFO), or 2 (BOTH). Default is 0
(RTP).
For more information, see Chapter
4, "Real-time Transport Protocol
(RTP) Settings"
This parameter determines if SRTP
is enabled on this IP phone, as
follows:
•
•
•
For more information, see Chapter
4, "Real-time 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, "Real-time Transport Protocol
(RTP) Settings"
41-001160-03 Rev 00, Release 2.5
Description
on page 4-95.
on page 4-95.
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.
on page 4-95.
on page 4-95.