G577:2025 Mobile Number Portability – Network Testing for Voice Services and SMS
G577 describes the recommended joint network testing for voice services and SMS to be conducted by Originating Access Service Deliverers (OASDs) and Mobile Carriers for Mobile Number Portability (MNP).
G577:2025 supersedes and replaces both the:
- G577:2009 Mobile Number Portability Testing Strategy for Voice, Data and Fax Services Industry Guideline; and
- G604:2013 MNP Ongoing Test Plan for Voice Fax and Data Services Industry Guideline.
G577 was previously published in September 2000, December 2000, March 2002 and December 2009 and reconfirmed in 2014 and 2019.
G604 was previously published in June 2002 and June 2013.