1. Network related - perhaps your 2 lines were disconnected for some reason (but you say they were able to send SMS but not calls);
2. Unit or Sim related - your phones might be defective OR the settings are not correct, sim might be defective or loose.
What did Globe say when you called? Are your 3 lines active in their system?
Have you checked your Sim cards and made sure that they are properly inserted?
Have you tried inserting another sim (different from your subscriptions0 in your phone to check if it works?
Perhaps when in doubt, why not bring your phones and sims to the nearest Globe Business Center so they can troubleshoot the problem?