Download Useful Forms 2b Broadband Phone Porting Notification & Notification of Service Disconnection for your Original Telephone Network Operator   HKBN Telephone Directory Update Form     Port-in Your Existing Phone Number to 2b Service Please fill in this "Porting Notification", then fax it to 128 1339. You may also scan the completed form(s) and email the image file(s) to cs2b@hkbn.com.hk。   Should you have any query, please call our Customer Service Hotline at 128 1331.