Viking K-1900W-IP-ASH VoIP Wall Phone Auto Dialer PoE Ash

Viking Electronics K-1900W-IP-ASH Classic VoIP Wall Phone with Auto Dialer

Overview

The Viking Electronics K-1900W-IP-ASH is a wall-mount SIP VoIP phone built for single-purpose calling environments — lobby courtesy phones, elevator cab phones, kiosk stations, and controlled-access corridors where you want a caller to reach exactly one destination without navigating menus. Every time the handset is lifted, the K-1900W-IP-ASH auto-dials a programmable 1–20 digit number. No keypad required, no user confusion. The phone registers as a standard SIP 2.0 endpoint (RFC 3261), which means it drops cleanly into any IP-PBX or hosted VoIP platform that handles compliant SIP devices — no proprietary gateways, no vendor lock-in.

The ash color finish suits commercial interior environments where a neutral-toned wall device blends with standard painted drywall or concrete block. If your application calls for higher visibility, the same platform is available in red. For VoIP phones covering similar single-purpose deployment scenarios, see the broader Viking Electronics line.

Key Features

• Auto-Dial on Lift (1–20 Digits): The moment the handset leaves the cradle, the phone dials its programmed number — no buttons, no touchscreen, no user decision required. This is the right behavior for unattended lobby stations, visitor check-in points, and ADA-accessible emergency call positions where simplicity is a safety requirement, not just a convenience.
• PoE Class 1 (<4W): Draws under 4 watts from a standard 802.3af PoE port — the lowest PoE draw class. A single 8-port PoE switch with a 30W budget can power seven of these phones simultaneously with overhead to spare. No local power supply, no outlet hunting, no conduit run just for power. One Cat5e cable handles data and power both.
• SIP 2.0 RFC 3261 Compliance: Registers natively with any standards-compliant SIP PBX — FreePBX, 3CX, Cisco UCM, Avaya, hosted platforms like RingCentral or Vonage Business — without needing adapter firmware or proprietary licensing. If your platform handles SIP, this phone works.
• Wideband Audio (G.722): Supports G.711u, G.711a, and G.722 codecs. G.722 delivers HD voice quality at 7 kHz audio bandwidth versus the 3.4 kHz ceiling of G.711 — noticeably clearer speech in noisy lobbies, loading docks, or mechanical rooms where ambient sound competes with conversation. Your PBX must also support G.722 to negotiate it.
• 100BASE-Tx / RJ-45 with 100m Cable Run: Standard 10/100 Ethernet over a single RJ-45 port, supporting cable runs to 100m (328 ft) — enough reach to cover most building floor plates from a single IDF without mid-span extenders.
• Extended Temperature Range (-40°F to 140°F): Rated for -40°C to 60°C operating range. This is genuine cold-weather performance — unconditioned stairwells, parking structure call stations, exterior vestibules in northern climates, or loading dock walls that see summer heat and winter freezes. The humidity tolerance (5–95% non-condensing) covers condensation-prone mechanical spaces.
• Wall-Mount Form Factor (9.0" × 8.25" × 4.75"): Designed to mount flush on a standard wall gang box or surface bracket. At 3 lbs shipped, installation is straightforward — two-person installs are typically not required. The desk variant (K-1900D-IP) shares the same electronics if you need a surface-mounted option at the same station.
• FCC Part 15 / CE / ICES-003 Class A: Carries the regulatory marks required for US and Canadian commercial deployment. Class A emissions rating is appropriate for commercial and light-industrial environments. CE marking covers EU market installation where applicable.

Integration and Compatibility

The K-1900W-IP-ASH connects over a standard RJ-45 10/100 Ethernet port and authenticates as a SIP 2.0 endpoint. It draws power from any 802.3af-compliant PoE switch — no injector required if your switch supports af. Configuration is handled via the phone's web interface or provisioning server; the 1–20 digit auto-dial number, SIP credentials, and codec preferences are all field-programmable.

Because the phone is a pure SIP device, it integrates with any hosted or on-premise PBX that supports RFC 3261 — Asterisk-based systems, 3CX, Cisco, Avaya, and major hosted UCaaS platforms. It does not require proprietary call manager licenses beyond what your platform already provisions for standard SIP endpoints. For facilities running a converged network infrastructure, this phone can share the same VLAN and QoS policy as your other SIP devices without special handling.

Consult a VoIP phone selection guide if you're evaluating single-line auto-dial phones against multi-line lobby attendant consoles — the K-1900W-IP-ASH is purpose-built for the former, not a replacement for a full-featured attendant station.

Frequently Asked Questions

Q: Does the K-1900W-IP-ASH require a separate power supply?

A: No. The phone is powered entirely by PoE Class 1 (under 4W) from any 802.3af-compliant switch port or PoE injector. No local AC outlet is needed.

Q: What SIP PBX platforms are compatible with the K-1900W-IP-ASH?

A: The phone registers as a standard SIP 2.0 (RFC 3261) endpoint, which is compatible with any platform that supports compliant SIP devices — including Asterisk/FreePBX, 3CX, Cisco Unified Communications Manager, Avaya, and major hosted UCaaS providers. Proprietary PBXs that do not support standard SIP may require additional configuration or may not be compatible.

Q: Can the auto-dial number be changed in the field?

A: Yes. The phone accepts a programmable 1–20 digit dial string, which can be set or changed via the device's web configuration interface. No physical modification is required.

Q: Is the K-1900W-IP-ASH rated for outdoor or unheated space installation?

A: The operating temperature range is -40°F to 140°F (-40°C to 60°C) with 5–95% non-condensing humidity tolerance, which covers unconditioned interior spaces, covered vestibules, and cold-climate stairwells. It is not rated for direct exposure to precipitation — install in a weatherproof enclosure if the mounting location sees rain or snow ingress.

Q: What audio codecs does the K-1900W-IP-ASH support?

A: The phone supports G.711u, G.711a, and G.722. G.722 provides HD wideband audio (7 kHz bandwidth) for noticeably clearer voice quality in noisy environments, provided the connected PBX also supports G.722 negotiation.

Q: What is the maximum Ethernet cable run for the K-1900W-IP-ASH?

A: Standard 100m (328 ft) over Cat5e or Cat6 to a 100BASE-Tx switch port, consistent with standard IEEE 802.3 wiring practice.

Ted Perry

The K-1900W-IP-ASH is one of those devices that integrators keep in their standard parts kit because it solves a very specific problem cleanly — a single-purpose SIP calling station that draws under 4 watts, mounts on a wall gang box, and requires no end-user instruction. I've specified this phone for elevator cab emergency calling, parking garage courtesy stations, and secure vestibule entry points where you want exactly one behavior: lift handset, phone calls security desk.

Technical Highlights:

• PoE Class 1 (<4W): At sub-4W draw, you can power a bank of these from a small 802.3af switch without budgeting for PoE+ or 802.3bt hardware. One 30W-budget 8-port switch handles seven units simultaneously — relevant when you're deploying lobby phones across multiple floors from a single closet.
• G.722 Wideband Codec: The 7 kHz audio bandwidth of G.722 makes a real difference in environments with HVAC noise, lobby echo, or mechanical room ambience. Standard G.711 narrows to 3.4 kHz and voices get muddy — G.722 keeps speech intelligible where it matters most for safety communications.
• -40°F Operating Floor: That temperature rating is not marketing padding — it means this phone installs in unheated stairwells, cold-storage facility corridors, and covered loading dock call stations without a heated enclosure. The 5–95% non-condensing humidity spec covers morning condensation in those same environments.

Deployment Considerations:

• Provision this phone on a dedicated voice VLAN with DSCP marking for SIP and RTP traffic. At under 4W and 100Mbps link speed, it won't strain network resources, but QoS tagging ensures G.722 audio stays clean when the data network is loaded.
• The phone is not rated for direct weather exposure — if mounting in a semi-outdoor location (covered parking, vestibule with gap sealing issues), pair it with a NEMA-rated surface enclosure. The internal electronics are not sealed against water ingress.

For elevator cab emergency phones, secure-entry vestibule stations, or any ADA-accessible single-destination call point in a commercial or institutional building, this phone handles the job without over-engineering it. It is not a fit for multi-line attendant positions or any station where the caller needs to choose a destination.