In 2008, the MultiService Forum (MSF) is expanding its interoperability focus beyond its Global MSF Interoperability (GMI) event with the addition of two new programs: a permanent NGN Interoperability Test Bed focused on emerging NGN interfaces and the MSF Certification Program, which provides vendor independent certification of critical NGN functionality. The GMI event will tie it all together by validating products in the latest standards based architectural framework using realistic global network deployment scenarios meaningful to major carriers....