Multi-Tech Systems MVPFX2-2 - Manual (Page 70)

Technical Configuration MultiVOIP FX User Guide
70
Voice/Fax Parameter Definitions (cont’d)
Field Name Values Description
DTMF Parameters
Duration
(DTMF)
60 – 3000
ms
When DTMF: Out of Band is selected,
this setting determines how long each
DTMF digit ‘sounds’ or is held. Default
= 100 ms.
DTMF
In/Out of
Band
Out of
Band, or
Inband
When DTMF Out of Band is selected,
the MultiVOIP detects DTMF tones at
its input and regenerates them at its
output. When DTMF Inband is
selected, the DTMF digits are passed
through the MultiVOIP unit as they are
received.
Out of Band
Mode
RFC 2833,
SIP Info
RFC2833 method. Uses an RTP
mode defined in RFC 2833 to
transmit the DTMF digits.
SIP Info method. Generates dual
tone multi frequency (DTMF) tones
on the telephony call leg. The SIP
INFO message is sent along the
signaling path of the call.
You must set this parameter per the
capabilities of the remote endpoint
with which the voip will
communicate. The RFC2833
method is the more common of the
two methods.