In order to further enhance telecommunication services quality, CTM will conduct the following upgrade projects in September 2022:






Project Title


Affected service



From 0:00 to 06:00 on 24th September



Mobile Network System upgrade and maintenance


During the period, some CTM mobile customers may experience intermittent interruption when using Voice call, Video Call, VoLTE, SMS and MMS service, whereas other services will remain normal.

For enquiries, please contact CTM No 1 Hotline: 1000.

Thank you for your kind attention. We apologize for any inconvenience this may cause.