T-Lib-Initiated Hold-Retrieve Music on Hold
The Music-on-Hold (MOH) Server is a regular SIP UA that streams music in an RTP stream. Stream Manager is used to provide Music On Hold.
In the scenario illustrated below, the agent at UA1 places UA2 on hold by invoking the T-Lib request THoldCall. UA2 will hear music while on hold; UA1 will hear silence.