search for: 66v

...finding the relevant information on how to make the thing pick up the PSTN line and make an outbound call. The sipura in question works fine on a bench connected to a POTS line in the US, but is now plugged in in Sao Paolo. The immediate thing I notice is that the voltage is high by US standards- 66v, as opposed to 48. But no combination of settings will seem to make it work properly- attempted outbound calls generate dead air. A brazilian POTS phone hooked up to the FXS port on the unit works just fine- I can ring it, and it can call into Asterisk. Am I barking up the wrong tree, and does the...