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
for the fax at any time without impacting the fax or voice messages. Also, you can disable the fax
without impacting the existing messages in the mailbox. However, after faxing is disabled for a
mailbox, the system rejects faxes addressed to that mailbox from a fax machine.
• The fax feature is supported when Cisco Unity Express is running in Cisco Unified SRST mode.
• Outbound faxes (for printing) can use a restriction table to send the fax.
Configuring Your Cisco IOS Gateway for T.37 On-Ramp and
Off-Ramp Fax Support
This section discusses the following topics:
• Prerequisites, page 12
• Configuring the Fax Gateway for T.37 On-Ramp, page 13
• Configuring the Fax Gateway for T.37 Off-Ramp, page 15
• Configuring the Fax Gateway for the Fax Detection Application, page 20
Prerequisites
Before you can configure fax feature, you must configure the fax gateway. As described in the
“Configuration Options” section on page 4, you have the following options:
• Using the Off-Ramp application with the On-Ramp application
• Using the Off-Ramp application with the fax detect application
For instructions on how to configure these options, see:
• Configuring the Fax Gateway for T.37 On-Ramp, page 13
• Configuring the Fax Gateway for T.37 Off-Ramp, page 15
• Configuring the Fax Gateway for the Fax Detection Application, page 20
The decision of which option to use to configure the fax gateway is determined, as described in the
“Configuration Options” section on page 4, by whether you will be:
• Using separate DIDs for Fax with either:
– Connect First Mode
– Listen First Mode
• Using single DID for Voice and Fax with either:
– Connect First Mode
– Listen First Mode
If you want to restrict specified extensions from using this feature, you must configure a restriction table
as described in the “Configuring Restriction Tables” section on page 32.
After you complete the appropriate prerequisites, you can then configure the following parameters, as
described in the “Configuring System-Wide Fax Parameters” section on page 58):
• The system level fax numbers used to print faxes.
• An association between a user and a fax number that can be used to receive faxes.