Command Reference Guide

160 ● fax protocol 3Com Router 5000 Family and Router 6000 Family
Command Reference
fax protocol
Purpose Use the fax protocol command to configure the protocol for intercommunication
with other devices or enable the fax Passthrough mode, and configure the number of
redundant packets sent via the T.38 fax protocol. The argument standard-t38
indicates the standard T38 negotiation mode specified by H323 or SIP adopted.
Use the
undo fax protocol command to restore the default number of
redundant packets and disable the fax Passthrough.
Syntax fax protocol { t38 | standard-t38 } [ lb-redundancy number |
hb-redundancy number ]
fax protocol nonstandard
fax protocol pcm { g711alaw | g711ulaw }
undo fax protocol
Parameters t38
Uses T.38 fax protocol. With this protocol, fax setup
speed is high.
standard-t38
Uses the standard T38 negotiation mode specified by
H323 or SIP to fax.
lb-redundancy number
Configures the number of low-speed redundant
packets.
number ranges from 0 to 5, and default
value is 0.
hb-redundancy number
Configures the number of high-speed redundant
packets.
number ranges from 0 to 2, and default
value is 0.
nonstandard
Uses the fax protocol compatible with the mainstream
devices of the industry.
pcm
Uses PCM coding/decoding.
g711alaw
Enables G.711A-law voice coding/decoding.
g711ulaw
Enables G.711 ì-law voice coding/decoding.
Default By default, fax Passthrough mode is disabled.
Example Configure the number of high-speed redundant packets sent through the T.38 fax
recommendation as 2.
[Router-voice-dial-entity1] fax protocol t38 hb-redundancy 2
View This command can be used in the following views:
■ Voice Entity view