ASCOM Ascotel 2025 System Manual page 467

ascom Ascotel 2025/2045/2065
Terminology
The following terms are used:
Tab. 2.117: Terms are used
Term
Internal subscriber
External subscriber
PISN subscriber
Subscriber A
Subscriber B
Subscriber C
Service
Feature
2.290 Features
Usage
An internal subscriber is connected locally to the system.
An external subscriber is located in the public network (outside the private net-
work).
A PISN subscriber is connected to another node (PINX) of the private network (PISN:
Private Integrated Services Network). Subscriber of a virtual PINX.
1. Subscriber in a feature scenario (the person who sets up a call for example)
2. Subscriber in a feature scenario (the person who answers subscriber A's call for
example).
3. Subscriber in a feature scenario (enquiry call between subscriber B and
subscriber C for example)
Function offered by the network provider and carried out in the public network, in
particular an ISDN supplementary service.
Function provided by the system and carried out locally in the PBX.
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