Viking Electronics K-1900-6 Compact VoIP Hotline Panel Phone with Auto-Dialer
Overview
The Viking Electronics K-1900-6 is a flush-mount VoIP panel phone engineered for hardened single-purpose communication: lift the handset, it dials. Designed as a true hotline instrument, the K-1900-6 auto-dials a programmable 1–32 digit number the moment the handset is lifted — no keypad input, no user error, no wrong numbers. That makes it the right tool for elevator lobbies, parking structures, guard stations, industrial floors, and any access point where fast, reliable connection to a single destination is the entire job requirement.
At 4.56" x 4.5" x 3.75", the K-1900-6 (often searched as K 1900 6) mounts flush to a standard double-gang electrical box, keeping the install clean and the footprint minimal. Power comes entirely from the network via PoE Class 1 — drawing under 4 watts, it won't strain a switch port budget, and there's no separate power supply to wire or find conduit space for. A single RJ45 10/100 connection handles both power and data.
Explore the full Viking Electronics line for related hotline, emergency, and specialty telephone products.
Key Features
- PoE Class 1 Power (<4W): Draws less than 4 watts from a standard 802.3af PoE port. A 24-port 370W switch can power 90+ of these without approaching budget limits — practical for multi-floor or multi-entry deployments without adding power circuits.
- SIP 2.0 (RFC 3261) Network Compliance: Registers natively on any SIP-based phone system or hosted UCaaS platform. No proprietary gateways, no analog adapters — drop it on the LAN and point it at your SIP server or PBX. Paired with the single RJ45 connection (10/100Base-T), the network integration is straightforward.
- 1–32 Digit Programmable Speed Dial: Store the full destination number in non-volatile memory — no batteries required to retain programming through a power cycle or outage. Works with extensions, PSTN numbers, and long-distance sequences up to 32 digits.
- Touch Tone and 10/20 PPS Pulse Dialing: Compatibility with both DTMF and legacy pulse systems means the K-1900-6 integrates into mixed telephony environments where older PABX infrastructure is still in the loop.
- G.711u / G.711a / G.722 Audio Codecs: G.722 delivers wideband (HD) audio at 7kHz — noticeably cleaner voice clarity compared to narrowband G.711 on noisy industrial floors or outdoor entry points. G.711 fallback ensures interop with standard VoIP endpoints.
- SPDT 2 Amp Relay Contacts: An onboard relay opens integration to door strike control, alarm annunciation, or auxiliary equipment triggering — all without a separate relay module. Useful at controlled entry points where the phone call and door release happen together.
- IP66 Rating (EWP Variant): The EWP (Extreme Weather Protection) configuration carries IP66, meaning sustained direct water jets and complete dust ingress protection. Humidity tolerance extends to 100% (non-condensing range is 5–95% on the standard model), and the operating temperature span of -40°F to 140°F (-40°C to 60°C) covers unheated parking decks, outdoor kiosks, and cold-storage access points without supplemental enclosures.
- 14 Gel-Filled Butt Connectors: Field-splicing connections arrive pre-packed with gel-filled butt connectors — the right choice for outdoor or damp-location terminations where oxidation is a long-term reliability concern. Saves a trip to the supply house on installation day.
- Hearing Aid Compatible Amplified Handset: Rotary handset volume control and hearing aid compatibility (HAC) support ADA-sensitive installations in public access areas, transit hubs, or government facilities.
- Non-Volatile Memory: Programming survives power loss without backup batteries — one less maintenance item in a remote or high-access-difficulty location.
Integration and Compatibility
The K-1900-6 registers on any SIP 2.0-compliant VoIP phone system — hosted platforms, on-premises IP PBX, and hybrid systems alike. The 100BASE-Tx Ethernet interface connects to any managed or unmanaged PoE switch; for multi-phone entry deployments, a PoE network switch with 802.3af support is all the infrastructure needed alongside the phone. The onboard SPDT relay integrates with access control panels, electric strikes, or annunciator inputs — wiring directly to the relay contacts without intermediate modules. For facilities running a mix of analog and IP endpoints, touch tone and pulse dialing compatibility prevents rework on the PBX side. The EWP variant's IP66 housing and 53"–58" armored handset cable are designed for outdoor panel or pedestal mounting in all-weather conditions. Pair with access control hardware at entry points where the phone and door release share a single interaction.
Frequently Asked Questions
Q: Does the K-1900-6 require a separate power supply?
A: No. The K-1900-6 is powered entirely via PoE Class 1 (IEEE 802.3af), drawing under 4 watts. A standard 802.3af PoE switch port is all that's needed — no separate power adapter or transformer.
Q: What SIP standard does the K-1900-6 support, and will it work with a hosted UCaaS platform?
A: The K-1900-6 complies with SIP 2.0 (RFC 3261), which is the universal standard for VoIP interoperability. It will register on virtually any SIP-based phone system, including on-premises IP PBX and hosted UCaaS platforms, provided SIP registration credentials are configured during setup.
Q: How does the auto-dialer function work?
A: Lifting the handset triggers an automatic dial of the pre-programmed number — a 1 to 32 digit sequence stored in non-volatile memory. No keypad entry is required and no batteries are needed to retain the programmed number through a power loss.
Q: What is the IP rating of the K-1900-6, and can it be installed outdoors?
A: The EWP (Extreme Weather Protection) configuration carries an IP66 rating, providing protection against sustained direct water jets and complete dust ingress. The operating temperature range is -40°F to 140°F, making outdoor installation viable in most climates without an additional enclosure. The standard model is rated for 5%–95% non-condensing humidity; the EWP variant extends to 100% humidity tolerance.
Q: What mounting options are available for the K-1900-6?
A: The K-1900-6 mounts flush to a standard double-gang electrical box. Dimensions are 4.56" x 4.5" x 3.75" and shipping weight is 2.0 lbs. The K-1900-7 variant adds surface mount capability in addition to double-gang flush mount.
Q: Does the K-1900-6 have a relay output for door strike or access control integration?
A: Yes. The K-1900-6 includes an SPDT relay rated at 2 amps, suitable for controlling a door strike, magnetic lock release, or auxiliary alarm input directly — no additional relay module required.
The K-1900-6 is one of those products that does exactly one thing and does it correctly every time. What catches my attention in this unit is the G.722 wideband codec support — on a panel phone at a noisy loading dock or parking structure entry, the jump from narrowband G.711 to 7kHz wideband audio is the difference between intelligible conversation and a frustrating repeat-yourself exchange. That alone justifies specifying this over a budget SIP ATA-plus-analog-phone combination.
Technical Highlights:
- PoE Class 1 (<4W): Under 4W draw means a single 802.3af switch can power a full floor of these without hitting port budget limits — no per-phone power planning needed beyond switch selection.
- Non-Volatile Speed Dial Memory: The 1–32 digit programmed number survives power loss without batteries. In a remote kiosk or elevator cab where battery replacement is a service call, this is meaningful uptime insurance.
- SPDT 2A Relay: Onboard relay at 2 amps handles most low-current door strikes and magnetic locks without an intermediate control module — reducing both parts count and potential failure points at a controlled entry.
Deployment Considerations:
- Flush mount to a double-gang box only on the K-1900-6 — if the wall opening or existing rough-in doesn't accommodate a standard double-gang, spec the K-1900-7 instead, which supports surface mount as well. Verify box depth against the 3.75" unit depth before rough-in.
- The EWP variant's IP66 rating and 100% humidity tolerance are required for true outdoor exposure — the standard model's 95% non-condensing humidity ceiling is not adequate for direct weather contact. Confirm which variant is on order before scheduling outdoor installation.
Best fit for controlled-entry deployments in parking structures, cold-storage facilities, and industrial access points where the phone needs to survive the environment as reliably as it makes the call — and where a staff member answering a door release and a phone call simultaneously is the standard operating procedure.
