Extension Mailbox is an optional feature of the Voice Messaging Service, Voice Mail Mailbox and Business Voice Messaging Service Choice products. This feature allows one mailbox to be divided into a maximum of four compartments - three extensions and one main mailbox. Extension Mailbox end-users can set up and use none, one, two or all three of their extensions, at any time.
Extension Mailbox can only be provided as an optional feature to an end-user that has one of the following services:
| Voice Messaging Service | USOC(s) |
| Residence | |
| Voice Messaging Service - Residence Only | VMJXA, VMJXB |
| Mailbox Only - Residence Only | VMJXX |
| Business | |
| Voice Mail Mailbox - Business Only | MBB, MBBXA |
| Business Voice Messaging Service Choice | VVMAD, VVMAE, VVMAF, VVMAG |
Extension Mailbox includes the following functions:
The main mailbox and each extension may have:
The main mailbox holder may press 0 while retrieving messages to determine how many messages each extension mailbox has.
Extension Mailbox has the following limitations:
By purchasing Extension Mailbox, the total voice messaging capacity is increased from 35 to 45 messages for all mailboxes.
The chart below explains how Extension Mailbox works with Message Send:
| Sending message from: | To: | Will it work? |
| Main Mailbox | Extension Mailbox | Yes |
| Extension Mailbox | Main Mailbox | |
| Extension Mailbox | Extension Mailbox | |
| Main Mailbox | Outside Mailbox | |
| Outside Mailbox | Main Mailbox | |
| Extension Mailbox | Outside Mailbox | No |
| Outside Mailbox | Extension Mailbox |
Outside callers can leave a message in:
To listen to the main and/or the extension greetings, the end-user must call into their mailbox. The mailbox owner can not review their greetings from the main menu while in retrieval mode.
To access an Extension Mailbox:
To send messages between extensions, record the message and follow the prompts.
Extension Mailbox is available wherever Voice Messaging Service, Voice Mail Mailbox and Business Voice Messaging Service Choice are offered.
Additional information can be found in the Pre-Ordering Overview.
The table below summarizes the compatibility of Extension Mailbox with other Business Voice Messaging Service features/functions:
| Feature/Service | Rules/Restrictions |
| Additional Message Capacity - 50 | Compatible |
| Additional Message Capacity - 100 | Not compatible |
| Call Routing | Not compatible
Extension Mailbox may not be built directly on the router, but it may be built on mailboxes behind the router. |
| Call Routing to Number | Not compatible
Extension Mailbox may not be built directly on the router, but it may be built on mailboxes behind the router. |
| Extended Absence Greeting | Not compatible
When an end-user has Voice Mail with Extension Mailbox, Extended Absence Greeting is turned off and will not work. |
| Group Distribution List | Limited compatibility
Extension Mailbox users can add their own extensions to one or more of their Group Distribution Lists using the appropriate Extension Mailbox Addresses. A user of Group Distribution List can not add someone else's extension mailboxes to their Group Distribution List. |
| Message Send | Limited compatibility
Extension Mailbox users can send messages to their own extension mailboxes. A user of Message Send can not send messages to someone else's extension mailboxes. |
| Message Notification | Limited compatibility
Message Notification only notifies end-users when messages are left in the main mailbox. Message Notification will not work for individual Extension Mailboxes. |
| Password Reset | Limited compatibility
When the Enhanced Service Center resets an extension's password, all messages in that extension are lost. |
| Route to Other Number | Compatible |
| Scheduled Greetings | Not compatible |
| Message Waiting Indication | Compatible |
Extension Mailbox may have a recurring and no nonrecurring charge based on state specific Tariffs/Catalogs/Price Lists.
Retail rates for this feature can be found in the state specific Tariffs/Catalogs/Price Lists.
Rates and/or discounts are available in Exhibit A or the specific rate sheet in your Interconnection or Resale Agreement.
Additional information on ordering can be found in the Ordering Overview.
The valid Feature Activity Types are:
NOTE: When changing from one feature to another, use N and D Feature Activity Types.
Extension Mailbox is identified by USOC VBS.
This feature is ordered by including:
This feature is removed by including:
Last Update: September 24, 2003
