The wifi range for the B618 is not the best. If you want to have better wifi coverage, you can either opt for a wifi extender or a signal repeater but it comes at a price of reduces speeds.

Yes it is possible. Plug it in the LAN port and have it configured.

The B618 is considered value for money if you get the TM Unifi Mobile package as you are buying the modem from them. You can than cancel the Unifi subscription on the very day itself, keeping the modem to be used with other Telco mobile plans. The main reason I am saying this is because the B618 has a 4x4 Mimo antenna out of the box which can give you very high speeds and performance if you are getting good reception in your area.

That is really bad. Did you actually test out the performance of the DiGi line in your area with a prepaid sim card before committing to sign up for the Infinite line? Try moving around your house with your phone. Some direction is bound to give you LTE connection.

Because P9 not support CA local. P20 Pro support CA Local.
Should use P20Pro as reference.

online only