Can you tell me a little more about the Twilio side of things? Exactly what do I need to sign up for or buy, and roughly how much would it all cost (monthly, yearly?)
I've got it mostly for a presence in the USA for verification but the simple costs are shown here Pay-as-you-go Phone Number pricing
Local Number: $1/month
Call costs are based on the terminating/orignating number location, there's two CSV files at that link that pretty comprehensively list all locations, (including overseas), by phone prefix.
Originating (outgoing): Generally USA Zone 1 seems to be $0.007/min
Terminating (incoming): $0.0085/min Voice, $0.0075/SMS, $0.01/MMS
By default the numbers are enabled for Voice, Fax, SMS, MMS, and outgoing calls to USA numbers only.
I just created an account and deposited $20 which gives me a phone number for 20 months, (less if I use it for calls/SMS naturally, since costs will be deducted from that $20).
SMS logs are kept in your account so you can view any received/replies, for example:Note:
Haven't had it long, I'm still playing around with it to see what I can do. Used to have an Australian VoIP but they were a little expensive in comparison. Short version, it was cheap enough so that I'd have 20 months to work out what I wanted it for
They have free trial accounts if you want to have a play: Try Twilio
There's also comprehensive API docs
available if you want to create your own application.