Nortel CallPilot Administrator's Manual page 148

148 Chapter 9 Configuring addressing conventions and messaging service defaults
Outbound SDNs used for message delivery to non-mailbox DNs are DTT
and DTF. In CallPilot Manager, these services are referred to as outcalling
services. Enable outcalling services for mailbox class members that must
be able to compose and send voice or fax messages to telephones, whether
or not they have mailboxes associated with them.
DTF versus fax messaging
Fax messaging service and DTF service differ in the following ways:
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Delivery of messages with both voice and fax components
For messages that contain both voice and fax, CallPilot assumes that the
address is either a telephone number or a fax number. Depending on how
the call is answered, the system sends the voice part, the fax part, or both
parts of the message.
The DTT service is used to send the voice portion of a multimedia message
addressed to an external recipient. The DTT service has its own defined
time periods during which CallPilot is permitted to send DTT messages. In
this case, messages are checked against the intersection of the DTT and
DTF time ranges.
Example
Assume that
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The allowed delivery time for a message containing both voice and fax
components is 9:00 a.m. to 8:00 p.m. (the period of time that overlaps the
two allowed delivery time periods).
Multi-delivery to fax service
Configuration of the multi-delivery to fax SDN determines the number of
channels that can be allocated to large-scale external fax distributions.
You can configure multi-delivery to fax service to specify the number of
recipients to which an external fax message must be addressed before the
fax is handled by the multi-delivery to fax service instead of the DTF SDN.
The advantages of making this distinction are
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Copyright © 2007, Nortel Networks
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Fax Messaging allows transmission of fax messages between CallPilot
mailbox users.
DTF service allows users to send faxes to external faxphones.
The allowed DTT delivery time is 9:00 a.m. to 8:00 p.m.
The allowed DTF delivery time is 8:00 a.m. to 11:00 p.m.
Each SDN can be allocated to different channels to help manage
resources.
Nortel CallPilot
Administrator Guide
NN44200-601 01.11 Standard
5.0 9 November 2007