GCL Services
The Gateway Control Layer (GCL) Services object is created under the SS7 Network object. On the IMG 2020, services such as the Message Waiting Indicator (MWI) service and the CNAM database lookup service are configured under this object. The GCL Service object identifies a way to pass the SIP messaging to an SS7 stack configured for TCAP/SCCP. From here the message will be sent to a channel group configured to pass TCAP messaging.
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