[asterisk-users] Purpose of qualify=yes

[Steve Totaro]

On Thu, Sep 16, 2010 at 11:32 AM, Benny Amorsen <benny+usenet at amorsen.dk> wrote:
> Chris Owen <owenc at hubris.net> writes:
>
>> So I guess my question is what is the real purpose of the qualify
>> setting in a non-NAT situation and can one safely set the
>> qualification as something higher. I'd think something like 15 seconds
>> would be more than enough for BLFs and the like.
>
> The purpose is simply to see if the phone is available. For your
> particular use it is likely best to simply turn it off completely. If a
> phone disappears, its registration will eventually time out anyway.
>
>
> /Benny
>
>

The other purpose is for DCHP and the IP address of a particular phone
may change.  If you hard code the phone and the corresponding entry in
sip.conf, you don't need to register or use qualify.

If the phone is reachable then it will reply and the call will go
normally.  If it doesn't reply, then on with the dialplan.

Thanks,
Steve T