3CX Voicemail Disabled or Blocked? How to Fix It

Two messages bring most people to this page: “voicemail is disabled for this extension” and a voicemail account that is temporarily blocked. Neither one means the phone is broken. The first is a setting, and the second is a security lockout that clears itself. Here is what each one means and how to fix it, followed by the everyday voicemail questions we answer for our 3CX customers.

“Voicemail is disabled for this extension”

A caller hears this when 3CX sends the call to a mailbox that cannot take a message. Work through these in order:

1. The mailbox is switched off on the user’s record. This is the usual cause on the systems we run. An administrator opens Admin > Users, selects the extension and turns voicemail back on in its Voicemail tab. Users cannot do this from the handset or the app.
2. The call is not landing where you think. If only outside callers hear the message, check the extension’s forwarding rules. External and internal calls can be routed differently, so outside calls may be sent to voicemail (or to another extension’s mailbox) while inside calls never get that far. 3CX’s community moderators point here first when only some callers hear it.
3. The system’s voicemail storage is full. 3CX support suggests checking the voicemail quota in the system’s voicemail settings, then deleting old messages or raising the limit. When this is the cause, it tends to affect every extension at once rather than one.

One knock-on effect is worth knowing: a user whose mailbox is off cannot record a spoken name, so they also drop out of the dial-by-name directory (more on that below). Turn voicemail on first, then record the name.

“Voicemail account temporarily blocked”

After several wrong PINs in a row, 3CX locks the mailbox for a cooldown period to stop PIN guessing. While it is locked, every PIN fails, including the correct one, which is why it looks like the system is broken. There are two ways out:

• Wait it out. Stop dialing and try again after a few minutes. More attempts during the lockout can restart the clock.
• Have an administrator change the PIN. A new PIN set in the user’s Voicemail tab unlocks the mailbox immediately.

If the same mailbox keeps locking, the user is almost always typing an old PIN: an administrator resending the welcome email quietly issues a new one. The full story, with the fix, is in 3CX voicemail PIN not working or blocked.

Telnamix customers on our managed 3CX phone systems can skip all of this and email [email protected]: unlocking a mailbox or turning one back on takes us a minute.

Everyday 3CX voicemail questions

Setting Up Your Voicemail:

Note: The dial-in number for voicemail may be “999” or “9999” depending on the number of digits in your extension. For example, a system that uses extensions like 103, 104, 105 would dial 999, whereas those with 1003, 1004, 1005 would dial 9999.

You can configure your voicemail by dialing the appropriate number or hitting the message button on your phone. Once connected to voicemail, you will be presented with the voicemail auto attendant interface. This feature will then present you with a voice menu system which announces the voicemail options and allows you to dial a key to access and manage those options. The initial options you are presented with are the following:

• Dial * to play your messages.
• Dial 9 to go to options.
• Dial pound(#) to exit.
• To Configure Your Voicemail, Dial “9”. Here Are the Options:
  • Dialing “1” allows you to change your profile status.
  • Dialing “3” allows you to dial a number.
  • Dialing “4” allows you to delete all read messages.
  • Dialing “5” allows you to change your self-identification message (spoken name).
  • Dialing “6” allows you to play mailbox information.
  • Dialing “7” allows you to change your voicemail PIN number (which will be reflected in 3CX Management Console).
  • Dialing “8” allows you to change your voicemail greeting.
  • Dialing “9” allows you to restart the voice menu’s prompts.

Checking Your Voice Mail from Any Company Phone

To check your Voice Mail from any company Phone, i.e., not your own extension:

1. Pick up the handset and dial “9999”.
2. Press “#”.
3. You will be asked to enter your extension number.
4. Type your PIN and then press “#”.
5. Follow the voice prompts to check or delete your voicemails.

Changing Your Voicemail PIN

In more depth: 3CX voicemail PIN not working or blocked.

To change your voicemail PIN, follow these steps:

1. Dial the voicemail extension listed on your welcome email. In most systems, this will be 999, but it may vary depending on your extension length. Alternatively, if you have a physical phone on your desk, you can press the voicemail or message button.
2. When prompted, enter your current PIN followed by “#.”
3. Press 9 to access Options.
4. Change your PIN by pressing 7, and then follow the voice prompts to enter and confirm your new PIN.
5. When done, press “#” to return to the main menu or simply hang up. If you encounter any issues while changing your PIN, please don’t hesitate to contact [email protected] for assistance.

Transferring Calls Directly to Voicemail

In more depth: how to transfer a call in 3CX.

To leave a message in a Voicemail box of a particular Extension: Dial *4{ext} For example, *41000, will leave a voicemail message in the voicemail box of extension 1000. Note: This process may vary depending on the extension length. Make sure to adapt the format to match your internal settings.

Not Receiving Voicemail Notifications via Email

In more depth: 3CX voicemail to email not working.

Most customers rely on Telnamix mail servers for their voicemail notification delivery. If they are not receiving emails, they should reach out to their IT provider or Internal admin as well as us at [email protected] so we can verify that messages are sending as they should. It is more than likely that the messages are going to spam, and telnamix.com may need to be whitelisted within their email provider.

Dial by Name Directory and Voicemail Setup

Often customers will want a dial by name directory, but they don’t understand why their extensions or users are not appearing in the directory. All users that wish to appear in the dial by name directory must dial into the voicemail menu, press 9 for more options at the main menu, and then record their spoken name or self-identification message by pressing option 5. They must also set their voicemail greeting that people hear before leaving a voicemail with option 8. Until those messages are recorded, the dial by name directory will not work. It is important to do these steps after the welcome email is received so that users are fully set up.

Voicemail Transcriptions

All Telnamix customers should have voicemail transcriptions enabled by default. They can reach out to us if they are not receiving their transcriptions. As it is included in their plan, there is nothing they need to do other than report an issue, and we will take care of it.