What if our office building can only connect Unicom's broadband, but our company needs Unicom's broadband?

It may be that only Unicom broadband has been handled, but not telecom broadband, so it can only be connected to Unicom broadband lines.

You can ask 10000 whether this office building can be equipped with telecom broadband.

If you can, you can walk to the telecom business hall with your ID card to open the telecom broadband service.

If you need multiple computers in the company to use broadband, you can install a router.