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This setup can lead to the following applications:
Example 1
This setup is very useful for a SOPHO-SET which uses B channel 0 for voice and B channel 1
for data, if there is a follow-me from BSP-ID0 to BSP-ID1. This configuration allows the
extension to work with one DNR only, namely 2400. Voice calls to 2400 are connected to B
channel 0 directly, whereas data calls are re-directed (because of the follow-me) from 2400
to 2401, which uses B channel 1. The follow-me relationship can only be changed by
Operational Maintenance commands and not by dialling facility codes at the telephone set,
because this only affects BSP-IDs for voice.
If callers must be able to discriminate between parties at an S{inf0} bus with the same service
identifier, the facility Multiple Subscriber Number (MSN) must be used.
Example 2 : BSP-ID discriminates between a voice and a FAX call. An analogue telephone set
has two BSP-IDs:
-
DNR:2400 with BSPT:95 (voice/possibly voice)
-
DNR:2400 with BSPT:06 (telefax4)
The FAX machine has the following BSP-ID:
-
DNR:2401 with BSPT:06 (telefax4)
A follow-me re-directs an incoming FAX call to DNR 2401, whereas a voice call goes directly
to the analogue telephone. (see example 1 for additional remarks)
2.7.
ISDN TERMINALS
See Facility Implementation Manual for Voice Facilities, chapter "S{inf0} Bus Terminals".
24
: a voice/data terminal connected to an S0 bus:
B channel 0 :
B channel 1 :
- BSP-ID0=2400-95 (voice/possibly voice)
- BSP-ID1=2400-96 (data)
- BSP-ID1=2401-96 (data)
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