I am looking for VoIP GW (analogue FXS interface) that can generate 12KHz or 16KHz for an application involving real time billing on a Hotel’s PBX. Another method that could be used is battery reversal. Please advise!
I do have.
But with the help of external micro-devices sitting between the gateway and the PBX.
So far I have seen a gateway being capable of sending 12/16Khz billing outpulses. What the gateways can do is just to reverse the polarity when a call starts/ends.
could be. I think – yes.
Also, the newer billing systems used on PBXes with ISDN PRI rely not on the 12/16Khz, but on the ETSI AOC (Advice of Charge) messages.
The beast (Cisco) does not pass AOC messages between its PRI interfaces.
Go figure it 🙂
The LEAD Access system (http://www.leadip.com) has end-units which supports 12/16KHz metering pulse.
However, they sell the end unit gateways only to operators and ISPs as part of their system.
I don’t know if it helps you…?!
I have a contact with a local company who produces such kinds of devices (12/16Khz, polarity reversal, displays to outputlse/display the charging units).
Contact me at email@example.com if interested. I am not going to advertise.