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17.42. NLCR - Partner system sends no LCR authorizations in Voice or Fax service Previous topic Parent topic Child topic Next topic

Feature:

LCR Least Cost Routing
For example, performing switching with E.164 numbering plan in network

Function:

If the COT of a trunk of parameter NLCR is set, then the LCR authorizations sent by the partner system are replaced by the LCR authorizations generated on the trunk.
If the parameter is not set, then the LCR authorizations are applied from the transferred protocol. If a protocol does not transfer any LCR authorizations, then the LCR authorizations of the trunk are always applied, irrespective of whether the NLCR parameter is activated or deactivated.
NLCR refers to the LCR class of service assigned to a trunk when generated with the parameter "LCOSV ... LCR class of service for voice, fax".
IMPORTANT:
At present, CORNV33 and CorNet-NQ are the only protocols that transfer LCR authorizations.

AMO Interrelationships:

COT:
NLRD ....
Partner system sends no LCR authorizations in the Data service
TACSU, TDCSU:
LCOSV
... LCR class of service for voice, fax

Device types:

Analog and digital tie trunk circuits, interface circuits and CO trunk circuits

Protocol variants:

For example,
ANALOG
Protocol for analog trunks
CORNV33
CorNet protocol
ECMAV2
CorNet-NQ Issue 2.1 Dec. 96 96 Basic ETSI
PSS1V2
CorNet-NQ Issue 2.1 Dec. 96 Basic ISO/IEC