Unprotect RTP warn, what is the reason

Hi,

I can see many times a warning like this:
2014-11-24 11:08:46,165 - WARN [SrtpChannel] Error
SrtpChannel::unprotectRtp 7 packettype 1 pt 1

What is the reason? It happens really often and doesn’t seem to be breaking
anything.

Regards,
Francois