We have quite of few IPK II's installed and lately I been getting complaints on when the phone rings on an outside call they go off hook to answer it and there is a 2 or 3 second period of silence. You might answer saying "Thank you for calling" the caller only hears " you for calling". There is no auto attendant and there is only 7-8 phones in the ring group. Some have caller ID some don't. I have defaulted the system and it goes away but after input very minor programming it goes back to delaying. By minor I'm talking things like putting trunks in a trunk group etc. The software version is 2.11.
Any clues?