Operational, Basic, and Advanced Parameters
A-78
41-001160-00, Release 2.1, Rev 04
IP Phone Administrator Guide
Appendix A
Parameter
–
sip out-of-band dtmf
Force RFC2833 Out-of-Band
DTMF
(in Web UI)
Aastra Web UI
Advanced Settings->Global SIP->RTP Settings
Configuration Files
aastra.cfg, <mac>.cfg
Description
Enables or disables out-of-band DTMF. Enabling this parameter forces
the IP phone to use out-of-band DTMF according to RFC2833.
Format
Boolean
Default Value
1
Range
0 - Disable
1 - Enable
Example
sip out-of-band dtmf: 0
Parameter
–
sip customized codec
Customized Codec Preference
List
(in Web UI)
Aastra Web UI
Advanced Settings->Global SIP->RTP Settings
Configuration Files
aastra.cfg, <mac>.cfg
Description
Specifies a customized Codec preference list which allows you to use
the preferred Codecs for this IP phone.
Format
Comma-separated list of semicolon-separated values
Default Value
Not Applicable
Range
Valid values for the syntax are:
payload
0 for G.711 m-Law
8 for G.711 a-Law
18 for G.729a
ptime
(in milliseconds)
5, 10, 15, 20........90
silsupp
on, off
Example
sip customized codec:
payload=8;ptime=10;silsupp=on,payload=0;ptime=10;
silsupp=off
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