Aastra SIP 53I Administrator's Manual page 580

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