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Value Added Services - Phone Lock

If you are paying for phone charges made by someone else on your phone, protect yourself!



1. Activating PhoneLock

  1. Lift the handset and wait for the dial tone.
  2. Key # 5 7 1 #
  3. Wait for the repeated tone, then replace the handset.

When your phone is locked, you'll hear a SingTel recorded message if you try to make a barred call. The phone will function normally for incoming calls.

2. Cancelling PhoneLock

  1. Lift the handset and wait for the dial tone.
  2. Key # 5 7 0 XXXXX # where XXXXX is your PIN (5 digits)
  3. Wait for the repeated tone indicating the PIN is valid, then replace the handset.
  4. If the PIN is not valid, you will hear the following announcement: " Sorry, you have not entered the correct PIN."

You may make your outgoing calls as usual. However, do not forget to lock your phone again to prevent unauthorised outgoing calls.

3. Cancelling PhoneLock to make One Call only

You can also cancel Phone Lock just to make one call. The
phone will then be automatically locked once you hang-up.

  1. Lift the handset and wait for the dial tone.
  2. Key # 0 XXXXX YYYYYYYY where XXXXX is your PIN (5 digits) & YYYYYYYY is your Phone number.
  3. There will be no dial tone after you enter the PIN. Proceed to dial the required phone number. If the correct PIN is entered, the call will be put through.
  4. If the PIN is not valid, you will hear the following announcement: " Sorry, you have not entered the correct PIN." Repeat step 1.
  5. After your call is completed, hang up. Your phone will be locked automatically.

When your phone is already unlocked and you accidentally use the one-call code to make an outgoing call, you will have to use the # 571 # code to lock the phone. The automatic lock will not working this case.

Please note:

  • Only one PIN is used to control Local, STD, IDD/Budget and AudioLine calls.
  • The 5-digit PIN can be any number of your choice. But the registration and changing of the PIN must be carried out by SingTel. You cannot change your PIN through your phone. Phone Lock can only restrict outgoing calls. It cannot restrict incoming calls, including overseas collect calls. With a collect call, the recipient pays the overseas call charge if he agrees to take the calls.
  • All local calls (except those to 995, 999 and 1608) will be barred when Phone Lock is activated with either of the following options. A caller will have to unlock the phone to make an outgoing local call.
    (i) STD, Local and AudioLine (numbers starting with 1900) calls
    (ii) IDD, BudgetCall, STD, Local and AudioLine (numbers starting with 1900) calls
  • If outgoing local calls are barred from your phone, the Auto Redial and Speed Dialling services cannot be used to make local calls.
  • If there is a disruption of service on your phone line, the phone will not be locked automatically when the service is subsequently restored.
  • Even with Phone Lock, the subscriber is responsible for all phone call charges originating from his phone line.
Value Added Services
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1711
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