BT Versatility

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The BT Versatility is a telephone PBX switchboard sold by BT and targeted at small businesses. It is manufactured by previously in Ireland as the . In South Africa it was sold by as the or C30, in Australia it was sold as the , in the USA it was sold by as the and by Mitel as the

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It is the successor to the also made by Lake Communications, which superseded the BT Inspiration which in turn superseded the .

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 PSTN Module (x2) (Black)
  • ISDN PRI module (up to 15 channels) (Yellow)
  • Router Module Connects to back plane and provides internet over ISDN Channel. Also provides DHCP/DNS/Gateway Services
  • The BROADBAND MODULE is equipped with a VoIP gateway with the following features:
    • 2 endpoints which support IP trunks
    • Proxy server registration
    • Codecs - G.711, G.729
    • Quality of Service
    • Built in ADSL Modem
    • Redundant Internet via ISDN
  • The BROADBAND MODULE PLUS is equipped with a VoIP gateway with the following features:
    • 12 endpoints which support trunks, extensions, unified messaging or any combination of all three
    • Proxy server registration
    • Codecs - G.711, G.729
    • Quality of Service
    • Built in ADSL Modem
    • Redundant Internet via ISDN

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 PSTN 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.

The BROADBAND MODULE has the following features:

  • Wide Area Networking
  • Local Area Networking - providing a 4 port hub
  • Wireless Local Area Networking
  • Multi-user Internet Access
  • ADSL/Broadband
  • ISDN
  • Firewall
  • VoIP Gateway supporting 2 IP trunks
  • Management - via serial (v24 interface) or IP

The BROADBAND MODULE PLUS has all the above features but includes a VoIP Gateway with 12 endpoints that can be configured as IP trunks, IP extensions, or any combination of both. It also supports Unified Messaging.

Feature phones[]

Default password[]

1111

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

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, but needs a mains adaptor for power (5V DC).

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[]

Miscellaneous Information[]

Current known highest firmware version for the CCU is 915 Current known highest firmware version for the BBM is 189

  • The BBM module is notoriously unreliable on early versions of the firmware requiring frequent reboots to reconnect to the trunk.
  • The BBM comes in two versions, a two port and twelve port. Both are to be avoided and best use a VoIP to PSTN trunk converter, such as a Cisco unit.

This unit was manufactured for other markets under the name of "Commander Connect", "Inter-tel Encore CX", "Tellumat Convergence 30 (C30)" & "Mitel 3000"

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