Norstar Flash problem

Not to be too obvious, but did you mean Feature*98?
Even then, it should be F*981, or another in that group:

Voicemail Feature Codes Norstar Meridian and Nortel BCM Help Guides

NorStar (NTAB2666) Audio Conference - this is a conference unit.

You issues is with voice mail though.
Call a tech in since your system is down.

That means that the voicemail system is no longer recognized by the phone system. Check the lights on the voicemail to see if its still receiving power.If so try unplugging and plugging the voicemail to reboot it. The voicemail can take up to 6 minutes to totally reboot.

If none of your voicemail feature codes(f980-f989) are active, then that means that the system doesn't recognize any nortel voicemail on the system.Which means that a) your system has a non-nortel voicemail system attached to it, b) theres no voicemail attached to the system at all or c) the voicemail is no longer functioning.

Hi, what do you want to change? What feature is programmed on the button?

"EACH OF THESE CODES ARE PRECEDED WITH THE ""FEATURE" " KEY"

**CONFIG NORSTAR CONFIGURATION PROGRAMMING (INSTALLER)
**SCPLUS NORSTAR SYSTEM COORDINATOR PLUS PROGRAMMING
(CICS AND ICS 2.0+)
**ADMIN NORSTAR ADMINISTRATIVE PROGRAMMING (SYS Coordinator)
**BASIC NORSTAR BASIC PROGRAMMING (CICS & ICS S.0+)
**SET NORSTAR SET PROFILE
**LINE NORSTAR LINE PROFILE
**USER NORSTAR USER PREFERENCES (CICS & ISC 2.0+)
**TIME NORSTAR TIME AND DATE (CICS & ICS 2.0+)
*0 BUTTON INQUIRY
*1 FEATURE KEY EXTERNAL AUTODIAL
*2 FEATURE KEY INTERNAL AUTODIAL
*3 FEATURE KEY PROGRAMMING
*4 PERSONNEL SPEED DIAL
*501 SELECT ENGLISH
*502 SELECT FRENCH
*503 SELECT SPANISH
*6 RING TYPE
*7 DISPLAY CONTRAST ADJUST
*80 RING VOLUME ADJUST
*81 MOVE LINE KEYS
*82 DIAL MODES
*831 AA ON/OFF (CICS)
*832 CCR ON/OFF (CICS)
*833 AA/CCR RECORDING MAINTENANCE (CICS)
*84 AUTO LOG OPTIONS
*85 CALL LOG PASSWORD
*89 PROGRAMMED RELEASE
*9 RUN/STOP
0 SYSTEM SPEED DIAL
1 SEND MESSAGE
#1 SEND MESSAGE CANCEL
2 RING AGAIN
#2 RING AGAIN CANCEL
3 CONFERENCE / TRANSFER
#3 CONFERENCE SPLIT
4 CALL FORWARD
#4 CALL FORWARD CANCEL
5 LAST NUMBER REDIAL
60 PAGE GENERAL
61X PAGE INTERNAL ZONE (1-6)
62 PAGE EXTERNAL
63X PAGE INTERNAL ZONE (1-6) PLUS EXTERNAL
64 LINE POOLS
65 MESSAGE REPLY
#65 MESSAGE REPLY CANCEL
66 VOICE CALL
67 SAVED NUMBER
68 RESTRICTION /COS OVERRIDE
69 PRIORITY CALL
70 CALL TRANSFER (BLIND)
71 LINK (HOOK FLASH)
72 TIMED RELEASE
74 CALL PARK
75 GROUP CALL PICKUP
76 DIRECTED CALL PICKUP
77 CALL DURATION TIMER
78 PAUSE
79 EXCLUSIVE HOLD
800 TRUNK ANSWER
801 CALL QUEUING
802 GROUP LISTENING
803 SHOW TIME
804 WAIT FOR DIAL TONE
805 TEST SETS (2.0)
806 HIDE DISPLAY
808 LONG TONES
810 MAKE BUSY
811 CALL INFORMATION
812 ENTER CALL LOG
813 LOG IT
815 AUTO BUMPING
817 IRAD TRANSFER (CICS ONLY)
819 OUTGOING NAME AND NUMBER BLOCKING (4.1)
#819 CANCEL OUTGOING NAME AND NUMBER BLOCKING
82 CAMP ON
83 PRIVACY CONTROL
84 LINE REDIRECTON
#84 CANCEL LINE REDIRECTION
85 DO NOT DISTURB
#85 CANCEL DO NOT DISTURB
86 BACK GROUND MUSIC
#86 CANCEL BACKGROUND MUSIC
87 "SERVICE MODES (DR-3,4,5)"
#87 CANCEL SERVICE MODES
870 SHOW SERVICE MODES (CICS)
871 EXTENDED RINGING (ICS)
#871 CANCEL EXTENDED RINGING
872 ALTERNATIVE RESTRICTIONS
#872 CANCEL ALTERNATIVE RESTRICTIONS
873 ALTERNATIVE ROUTING
#873 CANCEL ALTERNATIVE ROUTING
88 VOICE CALL DENY
#88 CANCEL VOICE CALL DENY

FEATURE 900 CODES ARE USED FOR OPTIONAL EQUIPMENT SUCH AS:
"VOICE MAIL, ACD, DIAL BY NAME, DOOR PHONE, ETC."
THE FOLLOWING ARE SOME COMMON USAGES:
9** "RAD PROGRAMMING (RAD 2, FASTRAD)"
9*0 RAD TRANSFER (ALL BUT CICS IRAD'S)
9*1 CHECK FEATURE CODES FOR VOICE MAIL
9*2 SMDR Admin
9*3 LOGGER TIME STAMP
9*3 VMI Codes(this was on an 8x24, came up on this code rather than F9*9)
9*4 NORSTAR DOOR PHONE PROGRAMMING
9*5 FLASH LOW RANGE CHECK FEATURE CODES
9*7 ACD ADMIN MAINTENANCE SESSION
9*9 VOICE MAIL INTERFACE (VMI) CODES
900 SMDR,enter an account number to be logged with the call
901 ACD LOGIN
901 VMI Admin
902 ACD UNAVAILABLE
903 VOICE MAIL HIGH/LOW RANGE SELECTION (DISABLED AFTER USE)
903 ACD CANCEL WRAP
904 ACD HELP
904 FLASH ACD LOW RANGE LOGIN/OUT
905 ACD CATEGORIZE
905 FLASH LOW RANGE DN IDENTIFIER
906 ACD RECORD CALL
906 FLASH LOW RANGE VM TRANSFER
907 FLASH LOW RANGE VM INTERRUPT
908 STAR TEXT (OBSOLETE)
908 FLASH ACD LOW RANGE BUSY MODE
909 ACD ANN. MAINTENANCE
909 FLASH ACD LOW RANGE QUEUE STATUS
910 FLASH LOW RANGE LEAVE MESSAGE
911 FLASH LOW RANGE OPEN MAILBOX
912 FLASH LOW RANGE OPERATOR CONTROL
913 ACD CALLS QUEUED
913 FLASH LOW RANGE SYSTEM ADMIN LOGIN
915 NORSTAR VOICE MAIL 2ND LEVEL ACCESS (PSWD=ACCESS2)
920 ACD ADMIN SESSION
921 ACD ROUTING SESSION DAY/NIGHT
922 ACD ADMIN STATISTICS SESSION
923 ACD GROUP STATISTICS SESSION
960 DIAL BY NAME (CINTECH NSVM OPTION)
961 DIAL BY NAME ADMIN (PSWD=1234)
980 VM SEND MSG TO ANOTHER MAILBOX
981 VM LOG INT MAILBOX
982 VM OPERATOR STATUS(PSWD=OPERATOR(67372867))
983 VM ADMIN PROGRAMMING (PSWD=1020000)
983 VM SOFTWARE LEVEL(LOGIN THEN OPTION 9)
984 VM TIME AND DATE(STARTALK Pswd=1020000)
984 AUTO FOREWARD TO VMAIL(NSVM4.0)
984 FLASH ACD LOGIN/OUT
985 "VOICE MAIL DN INQUIRY(RESET VM ADMIN PSWD 9,73738767793)"
986 VOICE MAIL TRANSFER
987 VOICE MAIL INTERRUPT
988 VOICE ACTIVATED NAME DIALING (NSVM 4.0)
988 FLASH ACD BUSY MODE
989 RECORD CALL (NSVM 4.0)
989 FLASH ACD QUEUE STATUS

Unplug then replug. Works every time.

Try powering off the voicemail system and and then power it on again. I've had it happen many times that after a power failure they just don't boot up correctly.

Kindly visit the link below and follow the instructions on how to alter the mailbox.

https://data2.manualslib.com/pdf/12/1133/113251-nortel/m7310.pdf?c2f689d5534c259245988fe5f85eed

That happens sometimes. Try cycling the power on the voicemail system. If that does not work, you may have to replace the voicemail power supply, or send the voicemail system for repair/replacement.
Good Luck!

should be 1020000