Enable Audio Stream to play for on hold + IVR to choose type of Music / Content
1 - Essential enable Web based URL(s) or ATA input(S) of 1 or more Audio Streams for on hold music.
2 - When a person is on hold they can select the type of music they listen to (like what Apple does as an example) ... through a IVR.
3 - Enable a stream to also be able to be played on a single or multicast SIP enable speaker array and then be able to interrupt that (muting the stream) when an alarm or announcement needs to be made (like in a large department store).
+61 421 286 200 if you wish to have any further clarification