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The Alliance for Telecommunications Industry Solutions, 12/01/2008
Publisher: ATIS
File Format: PDF
$128.00$257.86
Published:01/12/2008
UPT Routing for the Networks Served by the North American Numbering Plan
$30.00 $60.00
Calling Name Identification Restriction
$72.00 $145.00
Performance Parameters and Objectives for Integrated Services Digital Network
$110.00 $220.00
ISDN - Conference Calling Supplementary Service