Mitel 6800i Series Administrator's Manual page 775

PARAMETER –
sip out-of-band dtmf
DESCRIPTION
FORMAT
DEFAULT VALUE
RANGE
EXAMPLE
Operational, Basic, and Advanced Parameters
CONFIGURATION FILES
startup.cfg, <model>.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.
Note: See "Out-of-Band DTMF and DTMF Method
DTMF behavior information when this parameter is used in
conjunction with the "sip dtmf method" parameter.
Boolean
1
0 - Disable
1 - Enable
sip out-of-band dtmf: 0
on page 4-80" for
A-116