How much do I save for using 1511CALLBACK service compared to using M1/Singtel/Starhub?
ZONE Telecom > Business > 1511CALLBACK
You can save up to 77% for local calls and up to 86% for overseas calls. Kindly visit
, click on
service for more information.
Article ID: 86
Created: December 18, 2014 at 9:53 AM
Modified: December 22, 2014 at 3:15 PM
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