I have setup muisc on hold streaming on our office quadro 2xi. When an external call comes in and is placed on hold they hear the correctly streamed MoH message. However when an internal call (extension to extension) is placed on hold, they hear the inbuilt generic music on hold. Is this correct? I thought that any call placed on hold would hear the streaming source.

It's obviously not a problem, as internal calls do not need to hear the streaming source, I would just like to understand how it works exacttly.

All extensions have been setup to use the streaming source.

Any help appreciated.