AT&T feature module 2 Non-null account code in order to make an outside call, Just repeat steps 2

HOW TO USE	With the Forced Account Code Entry feature in place, you must enter a
	non-null account code in order to make an outside call.
	NOTE: If you want to erase or replace the account code you entered
	when you placed the call, you can do so while the call is in progress.
	Just follow the standard Account Code Entry procedure
	(see “Account Code Entry”).
	There are two procedures for placing calls, one for MERLIN II voice terminals
	and the other for Touch-Tone telephones.
	To place an outside call on a MERLIN 11 system voice terminal administered
	for Forced Account Code Entry:
	1 Lift the handset.
	The green light next to the programmed Account Code Entry button begins flashing. You
	hear no dial tone and no lights appear next to the line or pool button.
	2 Dial the appropriate account code (maximum of 16 digits) or touch the
	button programmed with that account code.
	3 Touch the Account Code Entry button.
	The green light next to the Account Code Entry button becomes steady.
	NOTE: Touching the Account Code Entry button stores the account code
	you just entered. If you perform another action before you touch the
	Account Code Entry button, such as selecting a different line or answering
	an incoming call, the account code you entered is erased. If that happens,
	just repeat steps 2 and 3.
	4 Touch the appropriate line, pool, or Pool Access button and dial the
	number. If your system has ARS and you get a busy signal on the
	outside line, touch the Pool Access button again. This connects you to a
	line in the backup line pool, if one has been administered. It isn’t
	necessary to reenter the account code.
	To place a call on a basic telephone administered for Forced Account Code
	Entry:
	1 Lift the handset.
	You hear the intercom dial tone
	2 Dial # 22, the code for the Account Code entry feature.
	3 Dial the appropriate account code (maximum of 16 digits).
	4 Dial #22 to terminate the Account Code entry.
	NOTE: You must finish dialing the codes within 15 seconds of lifting the
	handset, or the feature will be canceled. If that happens, just repeat the
	procedure.
	5 Dial 9 or 88, then the appropriate Pool Access code, where required.
	You hear the outside line dial tone.
	6 Dial the number.

MERLIN II System Features 2-69