We need to send and receive large number of transactional SMS from web application, thousands of SMS per hour at certain time of the day. Looking for a well-functioning, stable and highly reliable SMS solution. Instant delivery and 100% uptime is a must.
Though international coverage would be needed in the near future, targeted country for network coverage at the moment is India (all major cities in India).
What are the different solutions out there and how is one better than the other? Please suggest.