The present invention, in one aspect, relates to a method for replicating ring back tone (RBT). In one embodiment, the method includes the steps of sending a Play and Collect request to a media resource server (MRS) by an application server (AS), playing an RBT subscribed by the called party to the calling...http://www.google.ca/patents/US8170194?utm_source=gb-gplus-sharePatent US8170194 - Method and system for replicating ring back tones
