Filter
Top Products
Technical Configuration (T1/E1) MultiVOIP User Guide
144
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
(checked), 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.
FAX Parameters
Fax Enable Y/N Enables or disables fax capability
for a particular channel.
Max Baud
Rate
(Fax, bps)
2400, 4800,
7200, 9600,
12000, 14400
Set to match baud rate of fax machine
connected to channel (see Fax machine’s
user manual). Default = 14400 bps.
Fax Volume
Default =
-9.5 dB
-18.5 dB
to –3.5 dB
Controls output level of fax tones. To
be changed only under the direction of
Multi-Tech’s Technical Support.
Jitter Value
(Fax)
Default =
400 ms
Defines the inter-arrival packet
deviation (in milliseconds) for the
fax transmission. A higher value
will increase the delay, allowing a
higher percentage of packets to be
reassembled. A lower value will
decrease the delay allowing fewer
packets to be reassembled.
Mode (Fax) FRF 11;
T.38
(T.38 not
currently
sup-
ported)
FRF11 is frame-relay FAX standard
using these coders: G.711, G.728,
G.729, and G.723.1.
T.38 is an ITU-T standard for
storing and forwarding Faxes via
email using X.25 packets. It uses
T.30 fax standards and includes
special provisions to preclude FAX
timeouts during IP transmissions.