The Intelligent Network Application Part (INAP) is a signalling protocol used in the intelligent network architecture. It is part of the SS7 protocol suite, typically layered on top of TCAP. The Intelligent Network or I.N., as it is more commonly referred to, is a network architecture for both fixed and mobile telecommunication networks. ... Signalling System #7 is a set of protocols defined by ITU-T, specifically in the Q.7* set of documents, used to set up telephone calls. ...

The ITU defines several "capability levels" for this protocol, starting with Capability Set 1 (CS-1). A typical application for the IN is a Number Translation service. For example, in the United Kingdom, 0800 numbers are freephone numbers and are translated to a geographic number using an IN platform. The Telephone exchanges decode the 0800 numbers to an IN trigger and the exchange connects to the IN. The International Telecommunication Union (ITU; French: Union internationale des télécommunications, Spanish: Unión Internacional de Telecomunicaciones) is an international organization established to standardize and regulate international radio and telecommunications. ... The Intelligent Network or I.N., as it is more commonly referred to, is a network architecture for both fixed and mobile telecommunication networks. ...

The Telephone exchange uses TCAP, SCCP and INAP and in IN terms is a Service Switching Point. It sends an INAP Initial Detection Point (IDP) message to the Service Control Point. The SCP returns an INAP Connect message, which contains a geographic number to forward the call to. Transaction Capabilities Application Part, from ITU-T recommendations Q.771-Q.775 or ANSI T1. ... Skinny Client Control Protocol, a VoIP terminal control protocol defined by Cisco Systems, Inc. ... Service Switching Point (SSP) usually forms the end point of a SS7 network. ...

INAP messages are defined using ASN.1 encoding. SCCP is used for the routing. Extended form of INAP is Customised Applications for Mobile Enhanced Logic. TCAP is used to separate the transactions into discrete units. In telecommunications and computer networking, Abstract Syntax Notation One (ASN.1) is a standard and flexible notation that describes data structures for representing, encoding, transmitting, and decoding data. ... Skinny Client Control Protocol, a VoIP terminal control protocol defined by Cisco Systems, Inc. ... Customised Applications for Mobile networks Enhanced Logic, or CAMEL for short, is a set of GSM standards designed to work on a GSM core network. ...