asterisk users - Feb 2006 - Issue w/ Polycom 501 phones in a queue...

Hey all - I haven't run into this problem before, so I'm a little 
confused as to why I'm seeing it now. I've been testing with Polycom 
501's  in a ringall queue situation, and everything seemed to be fine. 
Now, if I make a call into the queue, and let it ring a few rings, then 
pick it up, the other phones setup in the ring-all queue, will keep 
ringing, even though another phone has picked it up. .. I've googled for 
about a day and a half on this, and haven't found anything. I'm curious 
if anybody here has seen this type of issue before. I have a feeling it 
might be something with the polycom phones themselves, but I can't see 
anything out of line in my configs for them...

Thanks in advance,


Rolf Brusletto