I am a first time user of Asterisk which has been a great learning process! I was on my final stage today of building a Asterisk PBX (Asterisk Now 6.12) but ran into a complication with IVR going to a Call Group which I think is related either to me mis-using the incorrect feature or not understanding the IVR options correctly. My calls come in via a inbound route that performs a time condition check and if the time condition check passes it puts the call to the IVR, the IVR plays a message and allows for direct extension dialling. If the user makes no selection after the timeout of the IVR (which I have set to 5 seconds) the IVR has been setup to pass the call to a call group, however when the call group rings it rings the first phone once it the call group and hangs up (the extension being rung shows one missed calls). I am not sure what information you need to be able to help so please feel free to let me know.
I have tried the call group and extensions individually taking the IVR out of the equation and the same issue does not occur.