I want to start a master's degree in telecommunications engineering from a distance, do you know Tech?

I don't know the particular company but you'd need consider first is whether its degrees are recognised, and if not, whether that matters for your purposes.

Then if it does, if you can obtain a similar remote course from an established university whose qualifications are respected in industry. Even better if uses local adult-education colleges for outreach services like tutorials.

As for cost, I suppose that's like anything else. I would expect a course from a company not running a full campus to be much cheaper than a standard university; but allowing for that, why is it cheap? Is it a slimmed-down course leading to a "qualification" that looks good, but is not very useful for a career?