We are using New Rock Technologies’ 4/8 port FXO gateways, as well as ISDN PRI gateways for PSTN connectivity. They are pretty generic comparing to others. I am, really, looking for general method of setting up outside lines with these gateways rather than SIP trunks on Kazoo platform.
Well, yes, I and probably others have experience with this but there are many many different multiport gateways, all with various ways of being setup and with various features/limitations/etc.
So, more detail is needed before a useful response can be provided.
Are you working with a specific brand/device you are having an issue with, or looking for recommendations, or ???