Can anyone comment on using SMS in conjunction with VoIP service using one of these three VoIP providers: voip.ms, vitelity.com, flowroute.com?
Are some SMS services more compatible with Asterisk (i.e. SMS over SIP
works perfectly or not)? Is it best to use a different data channel for SMS messages (i.e. SMS via HTTP, SMS via XMPP) instead of Asterisk’s built in SMS application MessageSend ? In order to develop a web application for sending and receives SMS messages for business users, are there any pitfalls in using Asterisk to handle the message exchanges?