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Table of Contents
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Overview:

When making a call there are instances where the calling party's name is not in the incoming IAM message. For these instances, feature F-1662 TCAP CNAM Queries for ISUP to SIP Calls' was developed. When this feature is configured/invoked the IMG will examine the incoming IAM and determine whether to do a CNAM Database lookup to determine the calling party's name. Once the calling party's name is found in the CNAM database it will be inter-worked into the From: header in the SIP INVITE message. Feature F-1662 gives the called party or application the ability to access the Calling Parties number if needed. This feature is being added in software version 10.5.3 and supports TCAP ANSI. This feature is supported on calls going from SS7 to SIP. Since TCAP is not supported on the IMG 1004, this feature is restricted to the IMG 1010 and is not supported on the IMG 1004. For more information on this feature, see information below.

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