[Asterisk-Users] Sipura-SPA2000 background noise

[Brian Cuthie]

Nicolas Gudino wrote:

> Hi Brian,
>
> Brian Cuthie wrote:
>
>>
>> BTW, anyone know how to get the SPA-2000 do drop loop current 
>> momentarily when the other end hangs up?
>>
>> -brian
>
>
> There is a web configuration option to reverse the polarity in the 
> latest 2.0 firmware.
>

Yeah, I saw that too. But it doesn't always seem to fire when I think it 
should. And, my Nortel switch ignores it anyway, since they have 
conveniently made their trunks polarity insensitive.

What would be better is if it dropped loop current entirely for a few 
hundred milliseconds.

-brian