I am justing thinking out loud. Step by step:
1. First call pstn from
http://www.sipbroker.com/sipbroker/action/pstnNumbers/
1. Dial an extension assigned by voxalot.com. Let's say 700 (by . So *010-600).
2. When asked for your extension, enter your extension (for example 333333).
3. When asked for password, enter your password (a numberic password, for example 1234).
4. Next speeddial for example *1. When dialing this number you will be called on your ptsn line (after a certain delay, because you are allready using your line to call this number) using webcall with for example voipbuster and you are calling to a certain number you have also set up using web interface.
When u setup these parameters once using voxalot.com you don't even need to connect to internet anymore. Just dial extension using 1 of the pstn numbers(
http://www.sipbroker.com/sipbroker/action/pstnNumbers) from sipbroker.com and call
