Lock/Unlock codes for Landline Phones

This trick is for landline users.

How to register for secret Codes:-

Suppose you want to make 5555 your secret code.

Follow this procedure:-
Dial 123 5555 5555 then wait for the acceptance tone then disconnect.

Your code is registered.

How to change secret Code:-

Suppose you want to change current code 5555 to 4444.
Dial 123 5555 4444 then wait for the acceptance tone then disconnect.
Your new code(4444) is registered.

How To Bar/Open Facilities using Secret Code:-

Step 1:- Bar STD/ISD calls (lock) Dial 124 5555 1 then wait for the acceptance tone then disconnect. Now STD/ISD calls will be barred .

Step 2:- Open STD/ISD calls (unlock) Dial 124 5555 0 then wait for the acceptance tone then disconnect. Now STD/ISD calls can be made.

Step 3:- Bar STD/ISD/manual trunck calls (lock) Dial 124 5555 2 then wait for the acceptance tone then disconnect. Now STD/ISD/manual trunck calls will be barred . (It will also bar calls to 95 level).

Step 4:- Open STD calls only (unlock) Dial 124 5555 3 then wait for the acceptance tone then disconnect. Now STD calls can be made.

Step 5:- Bar local calls (lock) Dial 124 5555 4 then wait for the acceptance tone then disconnect.

Step 6:- Open local calls only (unlock) Dial 124 5555 1 or 2 then wait for the acceptance tone then disconnect. Now Local calls can be made.

 Don't forget to like us on facebook.