AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN - Manual (Page 144)

41-001343-01 Rev 03, Release 3.2.2 3-57
RTP Settings
You can configure the following RTP settings.
Parameter In
IP Phone UI
Parameter in
Aastra Web UI
Parameters in
Configuration Files
Description
RTP Port Base RTP Port sip rtp port The RTP port is used for sending DTMF tones and
for the audio stream. Your network administrator
may close some ports for security reasons. You
may want to use this parameter to send RTP data
using a different port. Default is 3000.
For more information, see Chapter 4, “Real-time
Transport Protocol (RTP) Settings” on page 4-90 .
N/A Basic Codecs
(G.711 u-Law,
G.711 a-Law, G.729) sip use basic codecs Enables or disables basic codecs. Enabling this
parameter allows the IP phone to use the basic
Codecs when sending/receiving RTP packets.
Valid values are 0 (disabled) and 1 (enabled).
Default is 0 (disabled).
For more information, see Chapter 4, “Real-time
Transport Protocol (RTP) Settings” on page 4-90 .
N/A Force RFC2833 Out
of Band DTMF sip out-of-band dtmf Enables or disables out-of-band DTMF. Enabling
this parameter forces the IP phone to use
out-of-band DTMF according to RFC2833. Valid
values are 0 (disabled) and 1 (enabled). Default is
1 (enabled).
For more information, see Chapter 4, “Real-time
Transport Protocol (RTP) Settings” on page 4-90 .
N/A Customized Codec
Preference List sip customized codec 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” on page 4-90 .
N/A DTMF Method
(Global and
Per-Line)
sip dtmf method
(global)
sip lineN dtmf method
(per-line)
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” on page 4-90 .