I have an Ignition server that sits between a cellular gateway with a static IP address and a couple of PLCs. I would like to demo the ability for Ignition to send voice alarm notifications through an cloud service. I looked at Twilio and they provided a demo credit and lots of documentation. Twilio looks promising but there are a lot of features and it looks like its it very developer centric whereas the Ignition gateway has many out of the box settings for connecting to SIP telephony systems. I looked at Skype but I also heard mixed reviews on this forum about capacity and getting booted from Skype without being informed by Skype.
Can anybody share with me what service they used to do this and which feature they used to deliver alarm notifications over SIP through a cloud service. Much appreciated.