[asterisk-users] Polycom 501 issue with latest firmware : sluggish keys

[Eric "ManxPower" Wieling]

Jim King wrote:
> 
> I've seen an issue like this from time to time on 601s, even with the 
> latest firmware.  Not just the softkeys, but also the dial keys.  The 
> phones seem to "run slow" sometimes, failing to respond to a key press 
> right away but getting to it eventually.  It usually clears up after a 
> few seconds.
> 
> Also, I've noticed that the 601s sometimes ignore key presses 
> altogether, just as you describe.
> 
> I have not yet found a solution for this problem...

Try setting this in sip.cfg:  dialplan.impossibleMatchHandling="1"

I suspect it is either 0 or 2 now.