Texting flow test/monitoring?

[Kyleweir@lehighcounty.org]

I've had several issues in the past few months where our rcell 100s get disconnected from the isp. Not so much disconnected but the isp says it's connected and messages are being accepted.. but are never sent, and the cell provider says they never receive.
So with email we do a path flow test.
I was hoping to do a similar where every hr? It would send a text to its own number and either write in a txt file with successful and the time.. or something and I'd feed that into splunk.
I do have getascii and filter licenses.
Any ideas/suggestions on this?
And considering the way some of these providers are throttling/pausing service it may be a good idea...