Your shopping cart is empty!
The Alliance for Telecommunications Industry Solutions, 01/01/2001
Publisher: ATIS
File Format: PDF
$115.00$231.53
Published:01/01/2001
Digital Subscriber Signaling System No. 1 (DSS1) - Signaling Specification for the User Signaling Bearer Service
$55.00 $110.00
Integrated Services Digital Network (ISDN) - User-to-User Signaling Supplementary Service
$87.00 $175.00
ISDN - Call Hold Supplementary Service
$72.00 $145.00
Multi-Rate Circuit-Mode Bearer Service for ISDN - Addendum to the Circuit-Mode Bearer Service Category Description
$15.00 $30.00