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The Alliance for Telecommunications Industry Solutions, 09/21/2012
Publisher: ATIS
File Format: PDF
$107.00$214.43
Published:21/09/2012
Pages:129
Access Service Request (ASR) Guidelines
$135.00 $271.19
Structure and Representation of Network Channel (NC) and Network Channel Interface (NCI) Codes for Information Exchange
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NPA Code Relief Planning and Notification Guidelines
$105.00 $210.23