[Asterisk-Users] Ring power on Analog adapters

[Jorge Mendoza]

24 VDC and 20 mA are loop current parameters. Ringing are into the range 
of 50-90 VAC and 15-30 Hz.

Jorge

mattf wrote:

>Hello,
>
>I have a big old Fax machine that will only pick up a ring at 24volts and
>20mA(minimum) ring[according to the technical specs manual]. None of my SIP
>-> Analog phone adapters supply this:
>
>Cisco - 50 volts
>SIPURA - 70 volts
>Handytone - who knows, but it doesn't work
>
>can anyone tell me if there are any analog adapters or channel banks that
>can send a 24V 20mA ring signal?
>
>Also, does anyone know what voltage the Digium analog PCI cards send out for
>ring?
>
>Thanks,
>
>MATT---
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