3Com MSR 30, MSR 50 manual Fax ecm, Syntax fax ecm, Undo fax ecm

2684 CHAPTER 176: FAX OVER IP CONFIGURATION COMMANDS

Use the undo fax baudrate command to restore the default maximum fax baud rate.

Note that if the baud rate is set to a value other than “disable” and “voice”, the rate is negotiated first in accordance with the corresponding fax protocol. Here the rate refers to the allowed maximum rate, instead of the actual rate.

Example # Configure the gateway to negotiate the fax rate in accordance with the V.29 fax protocol.

<Sysname> system-view [Sysname] voice-setup [Sysname-voice] dial-program [Sysname-voice-dial] entity 4 pots

[Sysname-voice-dial-entity4] fax baudrate 9600

fax ecm

Syntax fax ecm

undo fax ecm

View POTS/VoIP entity view

Parameter None

Description Use the fax ecm command to configure the gateway to use the ECM mode by force.

Use the undo fax ecm command to restore the default.

By default, the ECM mode is not used on the gateway.

The fax ecm command is used to perform the forced restriction on the gateway. If the facsimile terminals at both ends support the ECM mode, but the non-ECM mode has been configured on the gateway side, then the non-ECM mode is selected. If either or both of the facsimile terminals do not support the ECM mode, the non-ECM mode is selected. Only when the facsimile terminals on both sides support the ECM mode and the gateway uses the ECM mode, the ECM mode will be selected.

You must enable the ECM mode for the POTS and VoIP entities of the fax sender and receiver in the ECM mode.

Example # Configure the gateway to adopt the ECM mode by force.

<Sysname> system-view [Sysname] voice-setup [Sysname-voice] dial-program [Sysname-voice-dial] entity 4 pots [Sysname-voice-dial-entity4] fax ecm