[no]
Example
AG/configure/dial-peer/voice/voip 20# modem pass-through g711ulaw
configure voice service voip fax protocol
Use this command to specify the global default fax protocol to be used for all VoIP dial
peers.
By default, no fax protocol is configured.
If this command is used to set fax relay options for all dial peers and the dial-peer voice
service voip fax protocol command is used on a specific dial peer, the dial-peer
configuration takes precedence over the global configuration.
Syntax
[no] fax protocol {none | pass-through {g711ulaw | g711alaw} | t38
[fallback {none | pass-through-g711ulaw | pass-through-g711alaw }] }
Table 394: Variable definitions
none
pass-through {g711ulaw | g711alaw}
t38
[fallback {none | pass-through-g711ulaw |
pass-through-g711alaw }]
Command Line Reference
Variable
Variable
configure voice service voip fax protocol
Value
Disables modem pass-through for a specific
dial peer.
Value
Specifies that no fax pass-through is
attempted. All special fax handling is
disabled, except for modem pass-through if
configured with the
modem pass-
through
command.
Specifies which high-bandwidth codec the
fax stream uses:
• g711ulaw: uses the G.711 u-law codec.
• g711alaw: uses the G.711 a-law codec
Specifies ITU-T T.38 standard fax protocol to
be used for all VoIP dial peers
With T.38, specifies a fallback mode to
transfer a fax across a VoIP network if the
T.38 fax relay cannot be successfully
negotiated at the time of the fax transfer
August 2013
359