Aastra Ascotel IntelliGate A150 - Call to a DSS1 Terminal Equipment on the S Bus (DDO)

System Functions and Features as of I7.9
Call routing 179
syd-0200/3.0 – I7.9 – 11.2009
5. 5. 5 Call to a DSS1 Terminal equipment on the S Bus (DDO)
The S external interface can be used to address a terminal equipment that has its
own direct dialling plan. The system dials the terminal's end destinations using DDI
numbers, which is equivalent to a DDO (direct dialling out) function. A fax server is
an example of one such terminal.
A PISN user is created in the PBX for each outgoing direct dial number.
Fig. 77 Call to a terminal with its own direct dialling plan
The following services are supported on S external:
• Base Call
• CLIP / CNIP
• Call charge information
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