DoorKing 1812-081 Classic Telephone Entry Intercom — Surface Mount
The 1812-081 is the surface-mount Classic model in DoorKing's 1812 range — the residential gate intercom that uses your existing telephone as the handset. A visitor at the gate presses the button, your phone rings with a distinctive double ring, and you press a digit to let them in. No second phone line, no separate intercom handset in the house.
It also runs in intercom mode on a PBX or KSU system, which makes it a straightforward door control for a small business.
Documentation: 1812 Classic installation manual (PDF) · 1812 Classic brochure (PDF)
Specifications
| Part number | 1812-081 |
|---|---|
| Series | 1812 Classic |
| Mounting | Surface mount |
| Call-out numbers | 3 preprogrammed |
| Entry codes | 50, four digits each |
| Relays | 2, for door or gate control |
| Connection | In series with the residential phone line. Bypass switch provided. |
| Communication | Full duplex |
| Memory | EEPROM — retains programming through a power loss |
| Power | 24 VAC, 20 VA (250 mA) transformer included |
| Listings | UL 294 compliant, ETL listed. FCC (US) DUF6VT-12874-OT-0 · DOC (CAN) 1736 4507 A |
Features
Distinctive double ring so you know a call is from the gate · call waiting · call forwarding to up to 3 numbers · "Do Not Disturb" time zone · hold-open time zones · built-in time clock · entry code time zones · "flash" entry code · LED lighted keypad.
The time zone features are the ones owners use most. Hold the gate open during a party or a delivery window, block calls at night, or give a housekeeper a code that only works on weekdays.
Dimensions by mounting
| Mounting | H × W × D |
|---|---|
| Surface — this model | 6.13" × 10" × 5.25" |
| Flush | 9.13" × 11.88" × 4.5" |
| Wall | 7.38" × 10.75" × 3.5" |
Classic, Plus or Access Plus?
| Level | Programming | Best for |
|---|---|---|
| Classic — this model | At the keypad | A family home or small shared driveway. 3 call-out numbers, 50 entry codes. |
| Plus | At the keypad | More capability than Classic — 1812-089 |
| Access Plus | From a PC over LAN or internet | Up to 27 numbers, 6 extra access points, remote code management — 1812-090 |
Flush mount version of this model: 1812-087.
Want a camera as well?
The 1812 takes a colour camera so you can see who is at the gate, not just hear them. Two ways to get there:
| Option | Notes |
|---|---|
| 1812-097 | The same Classic surface-mount system with the colour camera already installed. Cheaper than buying the unit and the kit separately. |
| 1812-145 | Colour camera kit to add to an existing 1812 |
| 2112-081 | DoorKing's video entry system — camera built in, connects over cellular or ethernet |
Common questions
Do I need a separate phone line at the gate? No — that is the point of the 1812. It connects in series with your existing residential line, and you answer the gate on the phone you already have. If you have no landline at all, cellular and VoIP options are available.
How many people can it call? Three preprogrammed numbers. If you need more, look at the Access Plus, which holds 27.
How many entry codes? 50, four digits each, and you can put them on time zones so a code only works when you want it to.
Can I use it on my mobile? The Classic dials the numbers you program, which can include a cell phone.
Will it open my
