A.2 ContinueWithArgument operation

29.0783GPPCAMEL Application Part (CAP) specificationCustomised Applications for Mobile network Enhanced Logic (CAMEL) Phase XRelease 17TS

Table A.2 illustrates the mapping of parameters received in the ContinueWithArgument operation to parameters sent in the ISUP IAM to the succeeding exchange. All parameters which were received in the ISUP IAM and which are not replaced by parameters mapped from the ContinueWithArgument operation, shall be treated (and propagated to the succeeding exchange) according to the normal procedures. Propagation of ISUP parameters and mapping of parameters according to Table A.2 applies also for CWA when used to set up a new party leg in an existing call, except when the existing call is a NC call, in which case only mapping of parameters according to Table A.2 applies. The rule of copying ISUP parameters received from incoming leg to NP leg is valid also when the incoming leg no longer exists.

For trunk originating calls using overlap signalling, the called party number in ISUP IAM may contain partial address digits. Any address digits received in SAMs, before the ISUP IAM is sent out, may also be included in the called party number parameter. Any address digits received in SAMs, after the ISUP IAM is sent out and before an ISUP ACM is received, shall be passed on to the succeeding exchange as received.

On sending of the ISUP IAM the awaiting address complete timer is started. If the timer expires, then the call is released in both directions and an appropriate indication is returned to the calling subscriber.

Table A.2

CAP Operation ContinueWithArgument (Note 1)	ISUP message IAM
callingPartysCategory	Calling party’s category
genericNumbers	Generic number (Note 2)
serviceInteractionIndicatorTwo	See Table A.4
cug-Interlock	Closed user group interlock code
cug-OutgoingAccess	Optional forward call indicators (Note 3)

NOTE 1: Optional parameters may be absent, i.e. they are mapped only if received.

NOTE 2: The set of generic numbers received in the genericNumbers parameter is mapped to the appropriate number of Generic Number parameters in the ISUP IAM. This shall be performed irrespective of the value of the screening indicator in the ISUP calling party number.

NOTE 3: The cug-OutgoingAccess is mapped to the Closed User Group indicator which is carried in bits A & B of the Optional forward call indicators.