The Gateway Control Protocol (H.248, Megaco) is an implementation of the media gateway control protocol architecture for providing telecommunication services across a converged internetwork consisting of the traditional public switched telephone network (PSTN) and modern packet networks, such as the Internet. H.248 is the designation of the recommendations developed by the ITU Telecommunication Standardization Sector (ITU-T) and Megaco is an abbreviation used primarily in the Internet Engineering Task Force (IETF). The current standard published in March 2013 by ITU-T is H.248.1: Gateway control protocol: Version 3.