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Modular Messaging and fax servers
November 2004
Avaya Modular Messaging Concepts and
Planning Guide
7-3
Outgoing fax Outgoing fax messages include:
! Fax messages that subscribers create and manually address to
fax=nnnn@host.domain, where nnnn is the number of the
destination fax machine or the recipient.
! Fax messages that subscribers print to a fax device from the TUI.
A messaging application server (MAS) takes responsibility of the
fax message and sends it to the Message Store Server (MSS).
Fax Sender Server
On receiving a fax message, the Fax Sender Server converts the text
message to TIFF format, adds a cover page, includes any TIFF file that
the subscriber may have attached, places an outgoing call to the fax
machine, sends the fax, and sends a message to the subscriber indicating
whether the fax was successfully transmitted.
If the fax is not delivered in spite of the maximum number of retries, the
fax is deemed undeliverable, the message is deleted from the fax mailbox
and a non-delivery-report is sent to the subscriber who sent the message.
Modular Messaging enables administrators to configure fax properties,
including defining company identification that appears on the outgoing
fax cover pages.
The Fax Sender Server can be installed on every MAS in a voice mail
domain. However, only one MAS can be designated as the active fax
sender for the voice mail domain. The Fax Sender Server installed on this
MAS requests and utilizes fax resources available on any of the MAS
units in the voice mail domain to receive or transmit fax messages. The
maximum number of concurrent incoming or outgoing faxes that a system
supports is equal to the sum of the fax resources on all the MAS units in
the voice mail domain.
Table 7-1 contains the maximum number of fax resources that different
port boards support. Fax resources are shared amongst all voice ports on
this board.
Table 7-1. Maximum fax resources on a port board
Port board Number of fax resources
T1 port board 15 (Dual span card)
E1 port board 16 (Dual span card)
8-port DSE port board 2
12-port analog port board 4
4-port analog port board 4