[Asterisk-Users] Strange message !! Unknown IE 76 (Unknown Information Element)

[Marcel Prisi]

Here is an example call (works) :

     -- Executing Dial("SIP/25-e804", "Zap/g1/0707038340") in new stack
     -- Called g1/0707038340
     -- Zap/1-1 is ringing
!! Unknown IE 76 (Unknown Information Element)
     -- Zap/1-1 answered SIP/25-e804

What does that "!! Unknown IE 76 (Unknown Information Element)" mean ??

Thanks