Subscriber Controlled NSD/ISD

OPERATING PROCEDURES FOR SUBSCRIBER CONTROLLED NSD/ISD BARRING

Facility to bar/open 95/NSD/ISD is entirely under your control if you have STD(NSD) facility
Subscribers who do not have STD facility but would like to bar access to 95 code may do it so by giving
a request in writing to the Divisional Engineer of the Exchange where the phone works with the
subscriber's signature duly authenticated ( attested by his Bank Manager,Gazetted Officer etc.).
Centralised ISD barring is in vogue now
NSD Facility for individual subscribers is provided on written request to the Divisional Engineer
of concerned exchange with the subscriber's signature duly authenticated (attested by Bank manager etc.)
NSD facility for companies and ISD facility for all subscribers is provided on written request to
Commercial Officer of the concerned area.

SI.No	FOR E10B/OCB/AXE/5ESS/EWSD DIGITAL EXCHANGES
2.	To register the password Choose a four digit password,say '2345' Dial the prefix 123 followed by the password twice e.g. 1232345 2345 Wait for the acceptance tone and then disconnect. Please remember this Password and keep it SECRET. For 5ESS Exchanges Dial the Prefix 123 followed by '0000', the initial password given by the exchange and the four digit password chosen by you (eg)123 0000 2345 - rest same procedure as for E10B digital exchanges.
	To bar NSD/ISD facility Dial 124, followed by the password and digit 1 e.g. 124 2345 1 Wait for acceptance tone and then disconnect. Now the NSD/ISD facility is barred. You can, however, have access to manual trunk service.
	To open NSD/ISD facility Dial 124, followed by the password and digit 0 e.g. 124 2345 0 Wait for acceptance tone and disconnect. Now the NSD/ISD facility is available to you.
	To open NSD only Dial 124, followed by the password and digit 3 e.g. 124 2345 3 Wait for acceptance tone and disconnect. Now the NSD facility alone is available to you.
	To bar NSD/ISD manual Trunk facility Dial 124 followed by the password and digit 2 e.g. 124 2345 2 For subscribers with STD :Selective barring of Level '95' calls has been introduced now.Dial 124 followed by four digit password and then 2 to bar Level "95" calls along with NSD/ISD calls, manual Trunk calls and calls to Special services
	To bar local calls Dial 124 followed by the Password and digit 4 eg.124 2345 4 (Applicable only if NSD is available)
	To Open Local Calls 1. .Dial 124, followed by the password and digit 1 or 2 e.g. 124 2345 1 or 2
	To change the password. Dial 123 followed by the old password and the new password (e.g.) if you want to change the password from 2345 to 5678 dial 123 2345 5678. Wait for acceptance tone and then disconnect. For opening/barring NSD/ISD you will use the new password hereafter (e.g.) '5678
	Do's and Don'ts
	Do wait for the acceptance tone after every command to the system as indicated. Do remember your password always. Do keep your password a Secret Don't use incorrect password, since the system will reject your command if the password used is incorrect. If incorrect password is used more than 9 times the dynamic locking facility will become inoperative. The facility will be restored only against a written request to theDivisional Engineer r of the concerned Exchange.