HOW TO USE THE DYNAMIC LOCK FACILITY IN BSNL LANDLINE/BFONE

1. To make lock code:
Suppose u want to make 4569 as ur lock code then follow the following procedure:
- Dial 123 4569 4569 and wait for announcement "Your Code has been accepted"
By doing the above step ur lock code viz. 4569 will be registered in the BSNL exchange data base. This step is required to be done only when u are registering ur lock code for the first time or u have requested to wash ur lock code.
2. To Lock STD/ISD (Local, Mobile, Special services will be allowed)
- Dial 124 4569 1 and wait for announcement "Your Code has been accepted".
3. To Lock STD/ISD/Mobile (Local and special services are allowed)
- Dial 124 4569 2 and wait for announcement "Your Code has been accepted".
4. To Lock STD/ISD/Mobile/Local (Only special services are allowed)
- Dial 124 4569 4 and wait for announcement "Your Code has been accepted".
5. To Open
- Dial 124 4569 0 and wait for announcement "Your Code has been accepted".
6. To change lock code (Suppose ur new code is 3458 and old code is 4569)
- Dial 123 4569 3458 and wait for announcement "Your Code has been accepted".

Do listen to the announcement care fully and if u hear 'Code u have dialled is wrong' then check ur lock code once again.
If u dial the wrong lock code for 10 consequitive times then ur lock will be jammed and u will have to contact the local SDE for resetting of lock code.