Anyone know of a service that offers an API to a virtual phone? Basically, I am looking for something that I can use to write acceptance tests for a twilio app, and I need a service that can simulate sending and receiving SMS messages, with a working phone number, just as if it were a real phone.
One option is to write a manual wrapper over the google voice web interface, as described here:
http://kalinchuk.com/?p=37
But I'd rather have a real service with a proper API, if anyone knows of one. Thanks.