How do I sign up for 1511CALLBACK service?

ZONE Telecom > Business > 1511CALLBACK

This service is available to all post-paid ZONE1511 subscribers under the 1511BIZ, 123FREE or 1511CHAT service plan.

If you are already a member, all you need to do is to send us a SMS to activate the 1511CALLBACK.

To activate: SMS callback<space>a to 81231511

However, if you are not our member yet, please register first using the following simple steps: 

- Visit our homepage at: and click on the "Sign Up" button.

- Select Business or Consumer

- Select your preferred promotion.

- Follow the on-screen instructions to register in 4 easy steps.