Basic call state model

In Intelligent Network and CAMEL switching, a BCSM is a Basic Call State Model.

[1] A fundamental concept for IN control is the basic call state model (BCSM).

These phases of the call are described in the BCSM.

The BCSM generally follows the ISUP signalling of a call In the following IN BCSMs, bold Detection Points and Points In Call are also present in the CAMEL Ph1 subset.

This article related to telephony is a stub.