busy prompt on SIP Server

Hi guys

I’ve probably overlooked something simple but I have an issue where I do not get a busy tone played out in the following call flow scenario:

PSTN=>CUBE=>SIP Server=>Busy DN (either internal or an externally routed one).

I just get silence on busy. Looking at the SIP Server deployment guide it has:

busy-tone
Default Value: music/busy_5sec
Valid Values: Name and path of any valid audio file
Changes Take Effect: Immediately for all new calls

In this example, is busy_5sec the name of the folder, and if so what should the actual filename be? I also assume this music folder should be in the install folder for SIP Server and not MCP for msml.

If I make the call via MCP by first routing to an IVR profile and vxml app I get the MCP busy audio fine.

If it’s relevant I’m also not always hearing the dialing/calling tone either when a call is being transferred or dialing through to the destination DN.

SIP cannot play anything, because SIP is just B2BUA without any RTP relation. All media services are provided by MCP itself. Check your configuration and option sip-busy-tone on trunk objects.
music/busy_5sec is a tone definition, which is saved within QTMF file under MCP_install_folder/music. All is described within documentation.