1638 IDD - Registration
Service
Visit any SmarTone store or Customer Service Centre
For Corporate Accounts
Please call our Corporate Sales Hotline at 2281 8818 for assistance.
- SmarTone customers with a specified mobile monthly plan can enjoy 1638 IDD calling from Hong Kong to overseas. If customers have not registered for 1638 IDD, please go to any of our stores for registration to enjoy the service.
- Subject to relevant terms and conditions. Please click here for details.