Every extension has a voice mailbox on TruePBX; however, the administrator can disable users’ mailboxes.

This section applies only to the voice mailbox of the system.

This tab has all the mailbox settings, including interface for uploading the greeting wave files, and shows the voicemails of the extension.

• Mailbox Enabled: From this setting, users can enable or disable their voice mailbox. If it is disabled, callers will not be able to leave messages and the user will be unable to use the mailbox functions. If FAX is selected, this mailbox will not play any announcement and instead wait for the FAX signal (available since version 5.0.3).

• Time until mailbox picks up: This setting allows users to specify how long the system should wait before redirecting calls to the user’s voicemail. If Call forward no answer timeout has been set, the shorter timeout will be executed first. If Include the cell phone in calls to extension has been set (see Redirection settings), the system must be given enough time to call the user’s cell phone (which may take 10 or more seconds) and enough time for the user to view the caller-ID. The default is 20 seconds.

• Maximum number of messages: This setting allows the user to specify the maximum number of voicemail messages that should be stored at any one time. If the maximum has been reached and a caller wants to leave a new voicemail message, the system will attempt to delete a saved message. If space is still unavailable, the system will inform the caller that the mailbox is full.

• Announcement Mode: From this setting, users can choose an announcement that callers will hear when reaching the their extension.

—Anonymous Announcement: The caller will hear the number of the extension.

—Name Announcement: The caller will hear the recorded name of the extension, if one is available.

—Personal Announcement: The caller will hear the recorded announcement of the extension, if one is available.

• Allow Access for Extensions: This setting allows users to create a group mailbox. A group mailbox can be used for anything from a joint boss/secretary mailbox to a place to collect after-hours calls or holiday calls. All parties will be notified of incoming messages by the MWI that is located on their individual phone (see MWI below). Users can listen to the messages from either their own voice mailbox or by dialing into the shared mailbox from an outside phone or an outside line on their own phone for instructions on accessing voicemail from an outside phone). Dialing directly into the shared mailbox allows users to hear messages that were called into the shared extension only (i.e., the messages will not be mixed with the user’s own voicemail messages). Users will need the PIN of the shared mailbox when accessing it directly. When entering multiple extensions into this field, use a space as a separator (e.g., 101 102).

• Send message waiting indication: When this feature is activated, users will receive a message waiting indicator (MWI)—a blinking light on their phone—that notifies them of a new message. Once the user has listened to the message, a solid light will replace the blinking light. This enables the system to alert the user the next time a new message has arrived. Star code *99 will clear the message indicator even if messages have not been read.

• Call cell phone when new message arrives: If users have decided against forwarding their calls to their cell phone but still want to be alerted when a new message arrives on their extension, they can activate this feature. Once a caller has left a message, the system will call the user on the cell phone. After the announcement, the user must press 1 to hear the message.

• Mailbox Escape Account (overrides domain setting): This setting gives users the option of changing the direction that a call will take once the caller presses 0 to speak with the operator. The extension that is entered into this field will receive the calls that the user thinks are directed to the operator.

• Group Extension: This setting is similar to the Allow Access for Extensions setting; however, if one of the parties reads the voicemail of a group extension, the other parties will not be impacted. The phone’s MWI (message waiting indicator) will remain lit. This feature ensures that all users who are part of the group mailbox are properly notified of important information.

Hint: Even if you set “Announcement Mode” to “Personal Announcement” the system will play in some situations additional announcements.
To get rid of these you have to deactivate “Offer Camp On” and set “Mailbox Explanation Prompt” to “Not on Personal recording” in the domains voicemail-settings, for further information have a look here: Voicemail.