ATIS 0409001-0500.a
$15.00
ATIS Supplement A to Unified Ordering Model (UOM) Volume II – Analysis Wireless Intercarrier Communications Interface Specification (WICIS) for Local Number Portability Version 5.0.0
Supplement A provides modifications to ATIS-0409001-0500 to change the usage of RCODE 6B for fraud prevention.
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