Hi Folks, I'm getting a lot of these messagse now with the Grandstream phones and Asterisk Incoming call: Got SIP response 415 "Unacceptable Content-Type" back from 192.168.1.X I don't think I noticed them when I only had one or two phones hooked up for testing, but I suppose I could have just missed them andthat the frequency isn't very high. Now with 30 devices they are very frequent. Any ideas?