First, we use .net & sql server.
I have a client that is interested in a system that will send SMS messages at scheduled times.
I have never done anything li
https://www.twilio.com/sms/pricing/gb
Twilio are quite cheap too.. similar to clickatell, they also have an API available but their prices appear to be cheaper at 0.04 USD ( 0.025 GBP at todays rate 22/06/2015 ) compared to clickatells cheapest rate of 0.034 GBP.