rtsp:// doesn't support any port number other than 80

[uscgraphics]

rtsp:// doesn't support any port number other than 80
for tcp and udp (http works fine). e.g.

rtsp://xxx.xxx.xxx.xxx:8080/axis-media/media.amp?tcp
will return
[rtsp @ 0057B0E0] CSeq 1 expected, 0 received.
[rtsp @ 0057B0E0] method OPTIONS failed: 501 Not Implemented
[rtsp @ 0057B0E0] Date: Wed, 03 Aug 2011 19:18:56 GMT
Accept-Ranges: bytes
Connection: close
Content-Type: text/html; charset=ISO-8859-1

rtsp://xxx.xxx.xxx.xxx:8080/axis-media/media.amp?tcp : Invalid data found when processing input

Using
rtsp://xxx.xxx.xxx.xxx:8080/axis-media/media.amp?http

works great.