System interfaces
30
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
2. 1. 2. 3 Direct Dialling Out (DDO)
If an external fax server is connected to an S bus, individual fax recipients allocated
a DDI number can be specifically addressed. In terms of routing technology, this
corresponding to a DDO (Direct Dialling Out) function.
The external fax server forwards the incoming faxes via e-mail to the relevant PC
stations that are set up as fax recipients.
Fig. 10 Direct Dialling Out (DDO) to a fax server
Due to the configuration of the BRI-S interface as EXTERNALS and the use of the
DSS1 protocol, the fax calls can be routed via routes and trunk groups. This means
that all fax receivers that have been allocated a DDI number can be reached via a
single BRI-S interface.
See also:
"Call to DSS1 Terminal Equipment on the S Bus (DDO)" Chapter in the
"System Functions and Features" System Manual
Tip:
The CPU2 applications card of an Aastra 470 communication server
already contains a fax server and its use is subject to the acquisition of the
relevant licences.
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