In Mobile technology, BGM is a value addition to mobile peer-to-peer calling wherein the subscriber is allowed to create his own ambience during a call by playing music in the background. The caller can choose his music from a variety of sounds provided. The prepaid as well as the post-paid base can be targeted for this service.
This solution is different from the CRBT solution, where music is played before the call is connected. In BGM, music is played after the call is connected. Technically, it is a conference service, which involves the calling party, called party and the music playing entity who is responsible for playing back music during the conversation.