Activating BSNL AMS facility

BSNL offers AMS facility for its customers. And in my humble opinion, their service sucks. I had the AMS facility activated after a lot of trouble and then one fine day, it was deactivated for no good reason. I again had to go through almost the entire procedure for having it activated.

Anyway, my woos aside, here is the procedure for activating AMS. You initially need to call the AMS customer care (156) and ask them to clear your mailbox number. This is the steps they will ask you to follow.

1. Dial 170512.
2. You are presented with choices for language (Select 1 for English)
3. Next you will be prompted whether you are calling from your own phone or a different phone (Select 1 if calling from own phone)
4. Now you will be prompted to enter the pass code (Please note that at this stage if you are being prompted for a mailbox number then you will have to call up the customer care and ask them to clear the mailbox number). Punch in 000000 (six zeroes).
5. Now you will be informed that your passcode has to be changed and asked to enter the new passcode. Enter a 4 digit or 6 digit passcode (ex. 300307).
6. Next you will be prompted to reenter the passcode. Enter the same passcode (300307) again.
7. You should now get a confirmation message informing you your new passcode.
8. Immediately after the confirmation, you will be presented the various choices. Dial 9 to hangup.

Also for me they gave me an account activation code which was 10 digits long and which they ask me to punch in directly from the phone. But as I had opted for STD facility and STD on my phone was locked, I was unable to punch in the 10 digit activation code. In order to have STD unlocked I had to do this. I remember calling up 23810025 for knowing the below procedure.

Note: The below procedure for unlocking STD may not be entirely correct as I had done this long back. In case there are any corrections in the below procedure, then kindly mail me or add it as a comment to this post.
1. First I think you will have to call up 23810025 and inform them to clear your STD passcode as you would like to enter a new one.
2. Next select a 4-digit passcode (ex. 3003) and you will have to punch in 123-passcode-passcode directly from your phone. The reason you will have to punch in your STD code twice is for confirmation.
For example, to have 3003 as your new STD passcode. you will have to type 12330033003. You should get a confirmation message.
3. To unlock the STD facility, punch in 124-passcode-3 (ex. 12430033). You should get a confirmation message.
4. To lock the STD facility, punch in 124-passcode-2 (ex. 12430032). You should get a confirmation message.

This was what I had to do to have AMS activated on my BSNL phone. Finally to access your AMS, dial "170512". The steps will be similar to what I have mentioned above except for that at step 4, you will have to enter your new passcode (ex. 300307), after which you will be taken to step 8.