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The Alliance for Telecommunications Industry Solutions, 03/01/2009
Publisher: ATIS
File Format: PDF
$136.00$272.35
Published:01/03/2009
Supplement to T1.607-2000 (R2004), ISDN Layer 3 Signaling Specifications for Circuit Switched Bearer Service for Digital Subscriber Signaling System No. 1 DSS1
$15.00 $30.00
Guidelines for the Administration of Telephone Numbers
$111.00 $223.21
NPA Code Relief Planning and Notification Guidelines
$110.00 $221.20
Personal Communications Services (PCS1900) - Specifications
$109.00 $219.91