BT Versatility

The BT Versatility is a telephone PBX switchboard sold by BT and targeted at small businesses. It is manufactured by Lake Communications in Ireland as the OfficeLink.

It has modular construction allowing a basic setup to be expanded as needed by clipping extra modules onto a backplane

The basic Central Control Unit (CCU) starts off as a 8 extension unit, with either analog POTS lines or ISDN line modules available. There is a serial connection that can be used for call logging and configuration. It can either use standard telephones or proprietary feature phones. A special Door Phone may be added on extension 23 and the system may be connected to an electronic lock relay to allow the door to be opened via a Door Phone call. Any extension may be programmed as a PA (Public Address) speaker.

It is the successor to the BT Pathway also made by Lake Communications, which superseded the BT Inspiration which in turn superseded the BT Revelation.

Contents 1 Technical specification 1.1 Extensions 1.2 Lines 1.3 Voicemail 1.4 Power 2 CCU modules 3 CCU backplane 3.1 Ports module 3.2 Options module 3.3 BroadBand module 4 Feature phones 4.1 V-Phone 4.2 V-8 Phone 4.3 V-16 Phone 4.3.1 XP Console 4.4 V-IP Phone 5 Wiring information 6 External links

Technical specification

Extensions

• You can have up to 40 Hybrid extensions
• Up to 8 V16 XP Consoles.

Lines

• 6 ISDN 2e (12 Channels)
• 1 ISDN 30 (PRI) (15 Channels)
• 12 Analogue Lines.

Voicemail

• 40 Individual Mailboxes
• 10 Phantom Mailboxes
• 20 Group Boxes
• 1 System Mailbox

Power

Maximum Consumption: 350VA

CCU modules

Gives 8 extensions onboard and allows the following modules to be added via slots in the CCUs cover.

• Voicemail (Blue)
  • 2-Port with 2 Hours capacity
  • 4-Port with 4 Hours capacity
  • 8-Port with 20 Hours capacity
• ISDN BRI module (x2) (Red)
• or a 2-Line POTS Module (x2) (Black)
• ISDN PRI module (up to 15 channels) (Yellow)

The following may be installed inside the CCU.

• Music On-Hold (MOH) Module which connects to any Extension on the CCU.
• Battery Backup - requires a 7aH Sealed Lead Acid Battery to give 40mins at 11erlangs.

CCU backplane

Purchasing one of these allows up to 5 of the following modules to be added:

Ports module

Gives 8 more extensions by default and allows either:

• ISDN BRI module (x2)
• or a 2-Line POTS Module (x2)

Options module

This allows a Central Bell and Music On-Hold as well as an external Long-Line extension (up to 2 km).

BroadBand module

On the BT Systems this allows you to connect to BT's VOIP services as trunks and provides the ability to connect VOIP extensions using the V-IP Feature Phone. It also includes a 4-port hub and a single wan port to pass traffic along. It connects to ADSL lines.

Feature phones

V-Phone

This is the basic single line phone.

V-8 Phone

This has 8 speed dial keys. Required for programming.

V-16 Phone

This has 16 speed dial keys, may also be used for programming, but needs a mains adaptor for power (5V DC).

XP Console

The V-16 may be equipped with a 32-Button XP Console. Up to 8 phones are supported with this on a system.

V-IP Phone

This connects to your network to link to the Broadband module, either locally or over a VPN. Requires mains power.

Wiring information

Extensions are 4-Wire hybrids, connect 2 and 5 to A and B on the CCU for standard analogue extensions and 1 and 6 to C and D for digital extensions. There are no connections to 3 and 4.

External links

• BT's Product info page
• Lake Communications OfficeLink