Bearer Independent Call Control extensions

In support of IP network based signaling, the Bearer Independent Call Control (BICC) stack capability is configured as a variant of ISUP. This capability allows network operators to offer the complete set of PSTN/ISDN services, including all supplementary services, over a variety of packet networks.

Support for BICC also allows network operators to gradually migrate their PSTN/ISDN networks to high-capacity packet networks. This is a vital step in the evolution toward integrated multi-service platforms, which can offer both voice and data services that are IP enabled. BICC can be transported over SS7 MTP3 or SIGTRAN (M3UA/SCTP).

The NaturalAccess™ BICC implementation supports Capability Sets 1 and 2 (CS1 and CS2) features such as basic call setup, forward or backward bearer setup, and supplementary services as specified in the Q.1901 and Q.1902.x specifications.