I ask can convert 4g router tp link to voip gateway gsm ?
Budget: $250 – $750 USD
I want quickly if can convert any 4g router to gateway gsm voip like goip , skyline
And if can do it from install new frimware for that I want to ask can create interface remotely for that like goip gateway
And if can do it from install new frimware for that I want to ask can create interface remotely for that like goip gateway