One of our customers said: 

 we're already using your toll-free number service for customer support for our client, and yes, your APIs are better and the integration is smoother and we have better control now, because we can do it all from our end. In the past, we had to work with the old vendor's tech team for the integration and it was not a painless experience.

Another one of our NGO customers said:

We were managing our SMS campaigns on excel sheets. Then we saw that it was very easy to manage Opt-in and Opt-out using your "List manager". This made it a no brainer to shift from our old service provider who was still making us wait for emails with excel sheets attached. 

Another customer concluded on these points about Exotel in comparison to the competition.  

+ good client support

+ documented api

Still undecided? Talk to your account manager.