Incomming call to call group -> phone still rining

Greetings to all.
I have set up a ring group, to answer calls coming in from the pstn. All phones ring correctly. The problem is that even after the call in answered, there is always one phone that keeps ringing until it is picked up. When answered, there is just silence.

How can I stop this happening?

Any help would be greatly appreciated.

What hardware do you have? Also can you paste the ring group code so we can see how its setup, and what kind of phones are you using…A little more info is needed before we can start to help you diagnose whats going on

I am using linksys spa942 phones, with a digium wildcard te122.

gui_ring_groupname=Ring All

What other info do you need, and I will post it asap.

so you are using the asterisknow? or the gui… I had weird issues with phones still ringing on a ring group but it was due to the fact that I had a "Stick"answering the call first to detect for a fax machine. You dont have anything like that do you? If you are using the gui, then I would run the updates and see if that fixes things, Let me know which you are using and I can probably help you

Asterisk Cant remember the version of asterisknow, but its the latest one.