A communication method can include the step of establishing a communication session between two endpoints based upon the real-time transport protocol (RTP). During the communication session, discrete packets containing digitally encoded audio can be exchanged between the two endpoints resulting in a continuous audio flow being established in real-time between the two endpoints. During the communication session, one or more of the two endpoints can convey RTP data to a remotely located RTP audio processor. The RTP data can include information necessary for the RTP audio processor to establish an audio stream with the one of the two endpoints that did not convey the RTP data to the RTP audio processor. The RTP audio processor can establish the audio stream without terminating the communication session between the two endpoints.