I've being testing a couple of GrandStream ATA 286 which with no reason
start responding 486 Busy to all new incoming INVITES. They are
connected to an Asterisk installation as SIP client. Running ethereal
between them, I could notice that, for some reason unknown for me at
this time, Asterisk sends some stranges INVITE's AFTER the communication
has been established and acknowledged (even after the REINVITES have
been processed by both ends).
Does anybody know the reason of this burst of this "out of scheme"
INVITEs? I guess that maybe they're confusing the ATA, setting it BUSY
in consecuence.
Thanks a lot for your help
--
Atly.
Alvaro Palma
