is this will be great with GSM/LTE gateways? also which one is easiest in terms of configurations as I am not into tech that muchThat's a rather open ended question. Anything that doesn't use SIP ALG. 3CX has instructions for several. We're a Netgate Partner so use pfSense, in order to use IDS, geo-based blocking, etc.
I would suggest finding a local 3CX partner or IT firm to help... pfSense is powerful but at times it assumes a knowledge of firewalls, routing, etc.is this will be great with GSM/LTE gateways? also which one is easiest in terms of configurations as I am not into tech that much
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