I have a Toshiba DKT-2020 SD and I deleted the main voice mail box when you go into voice mail it says let me try that extension.
You will need to have the admin program and a cable to connect to the system to re-make the mail box 990 or call a forwarded phone and get their voicemail box and press star and log into mail box 999 and create the user 990. If its older and you have a keyboard and monitor simply make mail box 990 and turn on DND.
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how do you turn voice mail back on Toshiba DKT 2020-SD
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