
Interfaces and Terminals as of I7.8
26
System Interfaces
sy
d-
023
9/2.
4
– I7.
8
– 0
7
.2009
2. 1. 4. 1
Analogue down-circuit connection
With an analogue down-circuit connection the features of the up-circuit PBX can
also be utilized.
This results in the following special applications for the user:
•
Depending on the system configuration the user makes phone calls in a com-
plex PBX environment. The subscriber’s disposal is a large number of features at
two levels (subscriber’s own system and the up-circuit system). A short induc-
tion course helps users to familiarize themselves quickly with the PBX environ-
ment.
•
Practically all PBX types that can be used as an up-circuit PBX also feature the
DTMF dialling method on the analogue terminal line, in addition to pulse dial-
ling. It is advisable to give preference to the DTMF dialling method over pulse di-
alling.
•
If the up-circuit PBX requires that subscribers wait for the exchange-free tone, all
the entered abbreviated dialling numbers must be provided with a hyphen "-"
(interdigit pause) after the digits for exchange access. At this point the PBX will
again pause for the tone when dialling.
Example: Exchange access via exchange access prefix
Fig. 11
Example of the exchange access prefix via up-circuit PBX
The following configuration steps are necessary:
1.
The exchange access prefix of the up-circuit PBX must be entered in the ex-
change digit barring.
¬¬n¬¬¬¬n¬¬¬¬¬
7AIT¬FOR¬DIALLING¬TONE¬OR¬CONTINUE¬DIALLING¬AFTER¬¬S¬FOR¬
EXAMPLE¬ADJUSTABLE¬DIALLING¬PAUSE
%XCHANGE¬ACCESS¬PREFIX¬ON¬UPCIRCUIT¬0"8
7HEN¬DIALLING¬VIA¬LINE¬KEY¬ALL¬THE¬CHARACTERS¬BEFORE¬
THE¬HYPHEN¬ARE¬SUPPRESSED¬DURING¬DIALLING
%XCHANGE¬ACCESS¬PREFIX
HAZAAENA