Multi-tech-systems MVP210-SS Manual do Utilizador descarregar pdf (Página 117)

MultiVOIP User Guide Technical Configuration

11

7

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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