A.5 ConnectToResource operation

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

On receipt of a ConnectToResource operation from the gsmSCF, the gsmSRF is connected to the call, to facilitate User Interactive dialogue with the user.

If the User Interactive dialogue is to be performed at a forwarding MSC or at a terminating MSC (GMSC or VMSC), then an ISUP ACM shall be sent to the preceding exchange. The encoding of the backward call indicators in the ISUP ACM is specified in 3GPP TS 09.12 [1], with the Optional Backward Call Indicators indicating "in-band information or an appropriate pattern is now available".

If the User Interactive dialogue is to be performed at a forwarding MSC or at a terminating MSC (GMSC or VMSC), then when the gsmSRF indicates through-connection and the ConnectToResource operation indicates that a bothway throughconnection is required, an ISUP ANM shall be sent to the preceding exchange if answer has not previously been sent. As a network operator/equipment vendor option an ISUP CPG message may be sent if ISUP ANM has already been sent.