22TB-IP – Viking Electronics

2 ft x 2 ft Drop-In Ceiling Tile Talk-Back IP Speaker for SIP Endpoint or Multicast Paging

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Product Details

The Viking model 22TB-IP Talk-Back 2 x 2 ceiling tile replacement speaker enables two-way conversations and end point paging via SIP, yet also allows for standard paging and background music via multicast. The Talk-Back Speaker easily connects with a single CAT5/6 cable from your PoE switch. Its 2’ x 2’ size, shallow depth and light weight design make for a quick and easy installation in drop/suspended ceilings. The speaker’s aesthetically pleasing white grill blends in with existing ceiling tiles and air vents.

An auxiliary switch input allows for a hard wired wall mounted button to initiate a SIP call. A momentary button press will initiate a standard call, and holding the button for 3 or more seconds will initiate an emergency call. The integrated high sensitivity microphone enables talk-back and also monitors room noise to automatically increase the speaker volume when necessary. Line level audio output connections are provided for connecting to an external amplifier. The 22TB-IP has an integrated 6 watt amplifier allowing its speaker output connections to directly drive up to 5 additional analog speakers. A programmable relay output is provided for activating door locks, strobe lights, external amplifiers, etc. A programmable blue status LED is provided to indicate paging, SIP call and network registration.


  • Amplified SIP endpoint or multicast IP paging for: schools, hospitals,retail stores, office spaces, etc.
  • Provide background music and sound masking
  • Make standard and/or emergency SIP phone calls via hands free talk-back speaker
  • Background music and emergency calls for elevator applications retail stores, office spaces, etc.
  • Mount in the ceiling above the door and use the existing door bell switch to activate a call


  • SIP compliant (see page two for list of compatible SIP servers and IP phone systems)
  • PoE powered (class 3, <13 Watts)
  • Up to 28 second ID announcement (uploaded from wave file or recorded live)
  • Paging prioritization
  • Plays audio from multicast
  • SIP endpoint or multicast group member
  • Supports up to 10 multicast paging groups
  • Add an optional SL-2 blue, green, red or amber strobe light (see DOD 242)
  • Blue call status LED indicator
  • Automatic Noise Canceling (ANC) feature for operation in noisy environments
  • Viking’s proprietary VOX switching eliminates the need for “Push to Talk” mode
  • Selectable auto-answer feature for monitoring
  • Autoprovisioning via Viking programming software
  • Built-in high efficiency 6 Watt class D amplifier
  • Can drive up to 5 external analog speakers for greater coverage
  • Relay for activating door locks, strobe lights, external amplifiers, etc.
  • SIP/Multicast: SIP page, SIP page and zoned multicast stream, zoned multicast receive
  • Support for access code to prevent unwanted SIP calls
  • Line-level audio output for connecting to an external amplifier
  • Hangs up on: busy signal, time-out, or touch tone command
  • Network remote speaker volume control
  • Mounting: Drop mounts into 2 x2 or 2 x 4 suspended ceilings
  • Heavy duty back box protects speaker and circuitry against plenum dust
  • Automatic Gain Control (AGC) to automatically increase ring volume to compensate for ambient noise
  • Diagnostics for testing microphone, speaker and relay
  • Programmable pre page alert tone


  • Power: PoE class 3 (<13 Watts)
  • Dimensions: 23.75” x 23.75” x 3.75” (603.25mm x 603.25mm x 95.25mm)
  • Shipping Weight: 5.0 lbs (2.27 kg)
  • Operating Temperature: -40°F to 140°F (-40° C to 60° C)
  • Humidity: 5% to 95% non-condensing
  • Audio Codecs: G711u, G722* and G711a*
  • Network Compliance: IEEE 802.3 af PoE, SIP 2.0 RFC3261, 100BASE-TX with auto cross over
  • Connections: (1) RJ45 10/100 Base-T, (1) 8 position terminal block
  • Sensitivity: 96dB / 1W / 1M S.P. Level
  • Maximum Output Level: 105 dB SPL @ 1M (with no additional Speakers connected)
  • Amplifier: 6 Watt class D

*NOTE: The 22TB-IP does not support multicast paging using the G722 or G711a Codec.