Your shopping cart is empty!
PDF Preview
The Alliance for Telecommunications Industry Solutions, 08/01/2022
Publisher: ATIS
File Format: PDF
$15.00$30.00
Published:01/08/2022
Pages:10
File Size:1 file , 970 KB
Note:This product is unavailable in Ukraine, Russia, Belarus
This document defines a mechanism that provides real-time notification in the backward call direction (towards the calling party), that the associated call was blocked by the indicated voice service provider due to analytics-based call processing.
9YY NXX Code Assignment Guidelines
$133.00 $266.77
800-855 Number Assignment Guidelines
$107.00 $214.95
555 NXX Assignment Guidelines
$135.00 $270.50
Guidelines for the Administration of Telephone Numbers
$149.00 $299.30