Following your discussion with a GP, together you can determine whether you still need to be seen face to face following this. If appropriate the GP will give you a time to be seen face to face that is convenient to you both.
If you only want to consult the GP over the telephone that is perfectly acceptable to. You can tell the GP on your consultation that you are happy to just be dealt with remotely. The GP will advise you if it is in your medical interests to be seen face to face.