Jeff, I haven't personally heard of anyone working with that particular provider, but that doesn't mean someone hasn't done it. Are you having issues getting the trunk registered or making calls? Thanks
I'm trying to do this as well, but their documentation doesn't really help.
Did you end up getting this working?
I did... it took a lot of trial and error.
Are you doing one or multiple trunks to the Adtran?
That's great new, Jeff!
I'll be doing multiple providers, but only one of which would be Twilio (to start at least)
Would you mind sharing your config on how you got it working?