Multi-Tech Systems MVP210-SS User Manual

Page 117

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MultiVOIP User Guide

Technical Configuration

117

Voice/Fax Parameter Definitions (cont’d)

Field Name

Valuee

Description

FAX Parameters

(cont’d)

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, 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.

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