That seems like a lot, considering I can do basically the same thing with a ton of flexibility using Twilio. At $1/mo + very reasonable per minute charges, you'

That seems like a lot, considering I can do basically the same thing with a ton of flexibility using Twilio. At $1/mo + very reasonable per minute charges, you'd have to spend well over 1000 minutes/mo on the phone before the $15/mo becomes cheaper.