3Com MSR 30, MSR 50 manual Fax nsf-on, Example # Configure the fax local training threshold to

2686 CHAPTER 176: FAX OVER IP CONFIGURATION COMMANDS

performed between two facsimile terminals and is transparent to the gateways. Therefore, for the point-to-point training, the gateway does not participate in rate training and the threshold is invalid.

n When the local training mode is adopted, the local training threshold configured with the fax local-train threshold command is valid. When the PPP training mode is adopted, the gateway does not participate in the rate training and the local training threshold is invalid.

Example # Configure the fax local training threshold to 20.

<Sysname> system-view [Sysname] voice-setup [Sysname-voice] dial-program [Sysname-voice-dial] entity 10 pots

[Sysname-voice-dial-entity10] fax train-mode local

[Sysname-voice-dial-entity10] fax local-train threshold 20

fax nsf-on

Syntax fax nsf-on

undo fax nsf-on

View POTS/VoIP entity view

Parameter None

Description Use the fax nsf-oncommon to configure the signal transmission mode of fax capability as a nonstandard mode.

Use the undo fax nsf-oncommand to restore the default transmission mode.

By default, the standard signal transmission mode of fax capability is adopted.

In some cases such as encrypted fax, both facsimile terminals adopt a nonstandard faculty (NSF) to negotiate. At the start of negotiation, both terminals first exchange NSF message frames, and then negotiate the subsequent fax capability for communication. NSF messages are standard T.30 messages and carry private information.

In order to use NSF for negotiation, the following conditions must be satisfied:

■Fax terminals must support nonstandard transmission mode.

■The signal transmission mode of the fax capability must be set to a nonstandard mode in the POTS and VoIP entities for both the fax terminals.

Example # Configure NSF for fax signal transmission.

<Sysname> system-view

[Sysname] voice-setup

[Sysname-voice] dial-program