Cisco Systems OL-1089-11 manual Forward Call Indicators Received Tag 2009/ANSI

Chapter 1 Billing Interfaces

CDE Detail Description

Forward Call Indicators Received (Tag: 2009/ANSI)

Table 1-32 Forward Call Indicators Received Description Form

Name: Forward Call Indicators Received

Tag: 2009

Source: MDL

Description/Purpose: This is for the received Forward Call Indicator parameter in ISUP message. It includes the following

fields: International Call Ind.; End To End Method Ind.; Interworking Ind.; IAM Segmentation Ind.; ISDN User Part Ind.; ISDN User Part Preference Ind.; ISDN Access Ind.; and SCCP Method Ind.

Format: ANSI T1.113 Length in Octets: 2

Data Value:

National/International call indicator Bit A—For POTS calling, Bit A should be coded as a 0, signifying that this is an incoming national call. A coding of 1 signifies that the call is an incoming international call.

End-to-end method indicator Bits CB:

00No end-to-end method available.

01Pass along method available.

10SCCP method available.

11Both Pass along and SCCP methods available.

Interworking indicator Bit D—This field indicates to the Cisco MGC if any interworking has been encountered in the type of signaling for this call. No pertinent information needs to be acted upon by the Cisco MGC; it should pass the information to the destination. “0” means no interworking was encountered (SS7 all the way). “1” means interworking was encountered.

IAM Segmentation indicator Bit E—In POTS calling, this segmentation indicator is marked with a 0.

ISDN User Part indicator Bit F, HG, I: This is a more granular field for use by the ISUP. In the United States, the ISUP is used exclusively. For POTS national numbers, this field is marked 1 for ISUP used all the way. That is, if the Interworking indicator is set at 0 there was no interworking. If the incoming call has a 0 in this field, there was interworking or the incoming international call could have used TUP for signaling before reaching the national network. The Cisco MGC should not have to deal with this bit; it should pass it on to the destination. For more details, please refer to the ANSI T1.113 specification.

Extended Data Value:

General Information:

MGC Release: Release 5.0 and later.

Cisco Media Gateway Controller Software Release 9 Billing Interface Guide

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