asterisk users - Sep 2014 - Media update error flooding the console output

Hi All
am running asterisk 1.8 , its a realtime asterisk.have recently noticed an
issues where am getting loads of these errors
SIP/blabla requested media update control 26, passing it to SIP/ProviderX
this literally keeps flooding the screen untill the call is answered and then i
get normal "locally bridging two channels"
infact, this has caused cross-talk (3-way call) between some random calls.
infact am not sure whether this error has caused this, i have filtered the logs
for a call which happened to join (not sure how) a call which was already in
progress. and in the logs for this call, i can see this error message appearing
about 400 times
any idea whats causing this and how can it be fixed.
i have already searched on different forums but could nt find much info.
somebody has suggested it could be related to SSRC change so am working on
filtering an RTP trace
RegardsHash 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.digium.com/pipermail/asterisk-users/attachments/20140901/6bac6ab7/attachment.html>