Call routing
251
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
With all call forwarding functions the call only continues ringing at user C once it
has been forwarded to the exchange.
Prerequisites
Call forwarding to the exchange is subject to the following requirements:
• ISDN network interfaces BRI-T/PRI (QSIG and analogue are not supported).
• In point-to-point operation the supplementary service partial rerouting must be
available (subscription may be required).
• In point-to-multipoint operation the supplementary service call deflection must
be available (subscription may be required).
• User B must be defined as a User-type individual destination in the call distribu-
tion element used by user A to make his call.
• The relevant authorizations must be enabled.
• If the call number of the external call forwarding destination is entered as an an-
alysable digit sequence in an LCR table and LCR is activated, the parameter Use
rerouting in the exchange (PARE) must be configured to Yes in the Account Man-
ager.
System configuration
Tab. 81 Transferring Call Forwarding Unconditional to the exchange: Settings
Parameter Parameter value
User configuration:
• Exchange access authorization yes
• Rerouting in the Exchange (PARE) yes
Trunk group configuration:
• Rerouting in the Exchange (PARE) yes
• PSTN supports ‘Identity of Charge’ yes
1)
1)
If the parameter is configured to Yes, the communication server also sends the call
charge identity when call forwarding to the exchange is transferred. This ensures that call
charge information is correctly logged in the communication server. The parameter set-
ting depends on whether or not the network operator supports Identity of Charge.
• Network type Public
• Protocol DSS1
Call distribution element:
• Destination User
Account Manager:
• Rerouting in the Exchange (PARE) yes
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