You’re shooting down good suggestions here, so I’m not sure if you don’t fully understand the problem, or are asking for the moon.
Are you wanting to send SMS from a specific device and SIM, or just ANY kind of SMS?
SMS is controlled from your provider. If you want to send from said provider, you need a device or app that can access their network. T-Mobile has a browser-based interface for this, and I think Mint does as well. Otherwise you need to get an SMS provider with an API to interact with, like Twilio, VoIP.ms, or similar.
You’re shooting down good suggestions here, so I’m not sure if you don’t fully understand the problem, or are asking for the moon.
Are you wanting to send SMS from a specific device and SIM, or just ANY kind of SMS?
SMS is controlled from your provider. If you want to send from said provider, you need a device or app that can access their network. T-Mobile has a browser-based interface for this, and I think Mint does as well. Otherwise you need to get an SMS provider with an API to interact with, like Twilio, VoIP.ms, or similar.