Multitech MULTIVOIP MVP-3010, Руководство пользователя

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Technical Configuration MultiVOIP User Guide
80
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.