G577:2009 Mobile Number Portability Testing Strategy for Voice, Data and Fax Services
G577 describes the joint network testing for voice, fax and data services to be conducted by PSDs and Mobile Carriers for mobile number portability. This is separate to and in addition to any internal testing conducted by any PSD or Mobile Carrier.
The Guideline was recofirmed in 2014 and 2019 and the next review is scheduled to occur in 2024.