The
CAMEL Application Part (
CAP) is a signalling protocol used in the
Intelligent Network (IN) architecture. CAP is a
Remote Operations Service Element (ROSE) user protocol, and as such is layered on top of the
Transaction Capabilities Application Part (TCAP) of the
SS#7 protocol suite. CAP is based on a subset of the
ETSI Core and allows for the implementation of carrier-grade, value added services such as unified messaging, prepaid, fraud control and Freephone in both the
GSM voice and
GPRS data networks. CAMEL is a means of adding intelligent applications to mobile (rather than fixed) networks. It builds upon established practices in the fixed line telephony business that are generally classed under the heading of (Intelligent Network Application Part) or
INAP CS-2 protocol.