This statement of compliance compares the OCNCC INAP implementation to: • ETSI defined INAP required for support of Capability Set 1 (CS1), as defined. Core-INAP-CS1-Codes &;ccitt(0) identified-organization(4) etsi(0) inDomain( 1) in-network(1) modules(0) cs1-codes(3) version1(0)} DEFINITIONS::= BEGIN. Jun 1, Intelligent Network Application Protocol (INAP); Part 1: Protocol This document describes the extensions to the ETSI Core INAP CS1 [1,2].

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These building blocks are easily recognizable as part of standard telephony call and feature processing. The result is a complete logic program that can be executed.

Figure shows an exchange between the SSP and SCP that requires the user to enter information based on voice prompts. This example is a very simple version of a toll-free service. As the network and services evolve, new means for interacting with the user will inevitably surface, thereby adding additional operations to the User Interaction Knap.

INAP Software

Figure shows the message flow for a ihap toll-free service using INAP. Whether the service is constructed using graphical tools or programming libraries, the end result must be able to run on the SCP platform. It could also include connections to an IP, along with many other variations in the message flow and parameters. Published By Cisco Press. The two most common onap involving User Interaction are collecting information from the user and playing audible messages or tones.

The toll-free application at the SSP determines that communication with the SCP is necessary to retrieve information for the toll-free service.

The operation within the User Interaction SIB that implements the collection of digits does not determine how the digits will be used. Like the various versions of AIN, INAP defines its own set of remote operations and parameters that are used at the component sublayer. The InitialDP component can include several optional parameters. However, the fundamental building block of this SIB will still be needed. Using our example in Cz1the CalledPartyNumber parameter is included to indicate the toll-free number.


Additional operations for communication, such as SCF-SCF, exist; however, this section focuses only on those operations that are directly related to services at an SSP. The example has been kept simple to provide an understanding of what a simple INAP exchange looks like for a service and to avoid the varying nuances of how the service might be deployed.

In the case of a toll-free or free phone call, charges are applied to the called party. Before running it on an SCP platform, the SCE generally provides some level of simulation to determine how ianp service will function.

INAP – Wikipedia

Many SCEs provide a Graphical User Interface that allows software components to be joined together at a high level using visual tools to represent a service. While they provide similar functionality to those used by North American AIN, they are distinct in their definition and encoding.

Example of User Interaction. Further modifications and customizations are applied by setting the properties that are associated with the high level objects and often by making software modifications at the software coding level.

The code modules are triggered by incoming messages, which match a given criteria for the script, from the SSP. Note that these tables do not include all INAP operations. The SCE allows subcomponents that make up an SIB to be joined together in a logical flow with decision branch points based on the results of the subcomponent operations.


The SLP is the executable logic that results from the service creation process. Good simulators allow phone calls to be placed using resources such as recorded announcements and Voice Recognition Units, to provide a complete simulation of the service.

Depending on regulatory policies and agreements, information such as the Carrier parameter can be returned in the Connect component to specify a particular IXC-providing service for the freephone number. Several SCEs are available, each differing in features and capabilities; however, they all share a common purpose of generating program code that can be executed by the SCP.

This allows SPs to build and deploy their own services.

Application context for SRF to SCF INAP CS1

No part of this book maybe reproduced or transmitted in any form or by any means, electronic or mechanical, including photcopying or recording, or by any information storage and retrieval system, without written permission from the publisher, except for the inclusion of brief quotations in a review. However, the operations have been tailored to the needs of the European region, thus adhering to the ETSI specifications.

The Apply Charging operation indicates that charging should be applied for the call and might contain a PartyToCharge ihap to indicate whether charges should be applied to the calling or called party. SLPs provide the “glue” logic and overall program flow to join SIBs together into meaningful services.