fixed in upstream version of h323plus.

src/mod/endpoints/mod_h323/bugs

-faststart and codecs v CallProceeding due to h323plus, grep "Very Frustrating - S.H." in h323plus 
-source and uncomment commented lines.
+seems none for now
\ No newline at end of file
-
-
-exploration form developer of h323plus:
-
-Yes that should be mera.
-
-The problem is that Callproceeding does not always come from the remote it
-may be generated by the gatekeeper. MERA where sending fast start elements
-in the Call proceeding and connect. The call proceeding where not valid and
-causing the media to fail. Normally (although valid) EP's do not set Fast
-Start in Call proceeding so the code was disabled to resolve the MERA issue.