Specifications

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Cisco Unity Express Voice-Mail and Auto-Attendant CLI Administrator Guide for 3.0 and Later Versions
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Chapter 23 Configuring Your Cisco IOS Gateway for T.37 On-Ramp and Off-Ramp Fax Support
Configuring Your Cisco IOS Gateway for T.37 On-Ramp and Off-Ramp Fax Support
Configuring the Fax Gateway for T.37 On-Ramp
Prerequisites
You must configure incoming and outgoing dial peers in order to route the fax call through the gateway.
For the POTS dial-peer configuration, the incoming called-number command allows this dial-peer to
match any inbound called number that comes into the gateway. Most real world scenarios usually have
a specific fax number configured. The direct-inward-dial command takes the received call number as the
number that is to be used when it makes a MMoIP dial-peer match. The port command associates this
POTS dial-peer with a physical port on the gateway. The important command from a T.37 on-ramp
perspective is the application name command. This command associates the on-ramp fax application
with a specific POTS dial peer. The name field is defined by the user in the call application voice name
file location command. In this example, the POTS dial peer uses the application onramp command
because that is the name that was previously defined with the command call application voice onramp
flash:app_faxmail_onramp.2.0.1.3.tcl.
For the outbound VoIP side, a multimedia or MMoIP dial-peer is necessary instead of the usual VoIP dial
peer. Like the POTS dial-peer, the MMoIP dial-peer also needs the command application
fax_on_vfc_onramp_app out-bound. This application command references a script that can be seen
when you look at the command show call application voice summary. The script that is needed is
fax_on_vfc_onramp_app. It is also important to remember the outbound keyword so that this application
is only used on outbound calls through the MMoIP dial-peer.
The destination-pattern command is used to match the inbound call number to a specific outbound
MMoIP dial-peer. In most circumstances, this dial-peer matches with a user’s inbound fax number. The
information-type fax command associates the outbound MMoIP peer with T.37 fax. Without this
command in the dial-peer, the gateway does not use the MMoIP peers and the onramp fax call fails.
The session target mailto:email address command identifies who the end user is from an e-mail
perspective. This is used to address the e-mail sent to the mail server. All fax e-mails are sent to the
mailbox defined by the dial-peer.
The following example shows a configuration for an incoming POTS dial-peer to match any inbound
called number that comes into the gateway:
se-10-0-0-0(config)# dial-peer voice 9995590 pots
application onramp
incoming called-number .
direct-inward-dial
port 2/1/0
!
The following example shows a configuration for an outbound multimedia or MMoIP dial-peer that
references the on-ramp script:
se-10-0-0-0(config)# dial-peer voice 1 mmoip
application fax_on_vfc_onramp_app out-bound
destination-pattern 9995590
information-type fax
session target mailto:$d$@sakapur.cue.com
Required Data for This Procedure
This procedure requires the username and hostname for an e-mail’s “From” field. This enables the user
to see “username@hostname” in an e-mail’s “From” field.