Ascotel IntelliGate 2025/2045/2065
606 Planning a PBX Part 3
• Practically all PBX types that can be used as an up-circuit PBX also feature the
DTMF dialling method on the analogue subscriber line, in addition to pulse dial-
ling. To prevent faulty dialling, the DTMF method should be used whenever
possible.
• 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. 3.7: 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
exchange digit barring.
2. The corresponding analogue trunk lines are configured to "Down-circuit from
the PBX ". Consequence:
– Digit barring is switched off in general. The digit barring of the
up-circuit PBX has to be used.
– Incoming calls are forwarded transparently to the subscriber.
3. The corresponding analogue trunk lines are to be configured to the correct
"dialling type".
– If the up-circuit PBX provides DTMF and pulse dialling for internal sub-
scriber
→ configure trunk lines to DTMF.
– If the up-circuit PBX only provides pulse dialling for internal subscribers
→ configure trunk lines to pulse dialling; the system earth must also be
installed for the earth key criterion.
0 – 0 – 032 6000 00 00
Wait for dialling tone or continue dialling after 6 s for
example (adjustable dialling pause)
Exchange access prefix on up-circuit PBX
When dialling via line key, all the characters before
the hyphen are suppressed during dialling
Exchange access prefix
haz0387aaena0
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