Paging audio details

[imfloridaguy]

I am trying to play the multicast page of a T26P running firmware version 140 on VLC software.
VLC is set to listen for multicast on the IP and port of the phone.
On the phone, when I hit the page button I've assigned, VLC running on my computer immediately responds with an error.
The error is "A description in SDP format is required to receive the RTP stream".
Because the error happens immediately upon my pressing the page key on my phone (and other phones do play the page), I know VLC on my computer is 'hearing' the page, however it can't play it.

Can you assist in telling me about exactly the format used in the page? Any details may help me figure this out.

Thanks!