ATGw - Access Transfer Gateway
The ATGw is a media function that is used to anchor the media stream. It is controlled by the ATCF and in terms of the physical location the ATGw could be an IM-MGW.
The ATGw is a media function that is used to anchor the media stream. It is controlled by the ATCF and in terms of the physical location the ATGw could be an IM-MGW.