Huawei v200r001 Configuring Fax Train Mode, Configuring Fax Local-train Threshold Value

User Manual - Configuration Guide (Volume 3)	Chapter 2
Versatile Routing Platform	IP Fax Configuration

If it is set to be the values except for “disable” and “voice”, the fax rate shall be set to be the corresponding values. The rate set here is not specified rate but the highest allowable rate.

When the setting is voice mode (i.e. ”voice”), the highest allowable rate of fax should be finally determined by the differences among voice codec protocols.

zThe fax rate is 14400bps if G.711 voice encoding & decoding protocol is used

zThe fax rate is 4800bps if G.723.1 Annex A voice encoding & decoding protocol is used.

zThe fax rate is 7200bps if G.729 voice encoding & decoding protocol is used

The fax function is disable when the setting is “disable”.

Please perform the following configuration in dial peer configuration mode.

Table VC-2-2Configure fax rate

Operation	Command
Configure fax rate	fax rate { 12000 14400 2400 4800 7200 9600 disable voice }

By default, the fax rate will be determined by voice mode.

2.2.4 Configuring Fax Train Mode

Local-train mode indicates that the gateway takes part in the rate train between the facsimile machines on the both ends. In the mode, the facsimile machine and gateway respectively take part in the training, then the receiving gateway sends the train results of the receiving end to the sending gateway, finally the sending gateway will determine the final message transmission rate according to the train results of the receiving end and its own end.

Point-to-point train mode indicates that the gateways do not take part in the rate train between the facsimile machines on the both ends. In the mode, the rate train processes between the two facsimile machine terminals and is transparent to the gateways.

Please perform the following configuration in dial peer configuration mode.

Table VC-2-3Configure fax train mode

Operation	Command
Configure fax train mode	fax train-mode { local ppp}

The mode is local-train mode (local) by default.

2.2.5 Configuring Fax Local-train Threshold Value

When the rate train is being processed between facsimile machines, the sending facsimile machine sends TCF data of “0” to the receiving facsimile machine for 1.5 +10% seconds, then the receiving end will determine if the rate is acceptable according to the received TCF data.

When it is configured to be local-train mode, use this command to configure the threshold value of the local-train. When “1” appears in the received TCF data, it indicates TCF data encountered errors during the transmission. If the number of the

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