Ascotel IntelliGate 2025/2045/2065
322 Call Routing Part 2
The system supports exchange-to-exchange traffic on both digital and analogue
network interfaces. The following settings are possible:
• "Not allowed": No exchange-to-exchange connections allowed
• "Only digital-digital": Both network interfaces must be digital
• "Also digital-analogue": At least one network interface must be digital
• "Also analogue-analogue": Both network interfaces can be analogue
If sections of exchange-to-exchange connections are analogue, the transmission
quality will decrease.
If a user tries to set up an inadmissible exchange-to-exchange connection (e.g. by
initiating an exchange enquiry call and then hanging up), the second connection
is disconnected and subscriber B obtains long ringing after hanging up, to be able
to answer the first connection on hold. This is the case for example if one or both
network interfaces are analogue and the parameter is "Exchange-to-exchange
connection" = "Only digital-digital".
Tip:
In some countries private PBX operators are not authorized to transfer
an outside call back to the public network. Explain the situation regard-
ing operating rights to the PBX operator during the negotiation stage.
Subscriber-specific configuration
The settings described in the last section can also be configured individually for
each subscriber. The subscriber-specific configuration takes priority over the set-
ting for the system as a whole. If a subscriber’s settings are not to deviate from
the settings made for the system as a whole, the parameter has to be configured
to "According to exchange settings" (initialization value).
Specially configured abbreviated dialling numbers
Exchange-to-exchange traffic can be enabled in general for specially configured
direct dialling numbers (”Exchange-to-Exchange connection = Yes”). This allows
all types of exchange-to-exchange connections, and is also valid in cases where
exchange-to-exchange traffic is barred in the system configuration and the sub-
scriber-specific configuration. The abbreviated dialling number stored does not
have to be complete, which means digits can be suffix-dialled manually. This
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