CallToU WT42 DBM

CallToU WT42 DBM 2-Way Wireless Intercom User Manual

Model: WT42 DBM

1. Producte acabatview

The CallToU WT42 DBM 2-Way Wireless Intercom system provides reliable communication over long distances without the need for Wi-Fi or cellular service. Designed for ease of use, it features a VOX hands-free function, a durable build, and a rechargeable battery, making it suitable for various communication needs, including caregiver monitoring and family coordination.

Característiques principals:

  • 3300ft Wireless Range: Ensures stable communication across rooms, floors, and outdoor areas.
  • Operació mans lliures de VOX: Allows communication without pressing buttons, ideal for multi-tasking.
  • Disseny durador: Built to withstand spills and general use.
  • Bateria recarregable de 1000 mAh: Provides up to 36 hours of standby time with Type-C charging.
  • No Network Required: Operates independently, free from monthly fees or app requirements.
  • Multiple Channel Options: 16 channels available to avoid interference.
  • Bloqueig del teclat: Evita canvis accidentals de canal.
CallToU WT42 DBM 2-Way Wireless Intercom Unit
Image 1.1: CallToU WT42 DBM 2-Way Wireless Intercom Unit.

This image displays a single CallToU WT42 DBM intercom unit, highlighting its compact design and front-facing controls.

CallToU Wireless Intercom System with elderly and caregiver
Image 1.2: CallToU Wireless Intercom System in use.

This image illustrates the CallToU wireless intercom system being used by an elderly person and a caregiver in a home setting, emphasizing its role in facilitating communication.

2. Instruccions de configuració

2.1 Càrrega inicial

Before first use, fully charge both intercom units. The units come with a 1000mAh rechargeable battery and a Type-C charging cable.

  1. Ensure the radio is turned OFF before charging.
  2. Connect the Type-C charging cable to the intercom unit and a compatible power adapter. Use only the original charger and cable provided.
  3. Observe the indicator light for charging status:
    • Getting Ready (First 2 minutes): Solid Green light. The radio is checking the battery.
    • Charging (After 2 minutes - 6 hours): Solid Red light. The battery is charging.
    • Fully Charged (After 6 hours): Solid Green light (for over 3 minutes). The battery is full. You can now unplug the radio and turn it on.
  4. A low battery alert will sound as a "di-di-di" alert every 20 seconds, accompanied by a flashing green light (blinks once per second). It is recommended to charge the radio before bed to avoid disturbance.
CallToU Intercom Charging Guide Step 1
Image 2.1: Low Battery Alert.

This image illustrates the visual and auditory indicators for a low battery on the intercom unit.

CallToU Intercom Charging Guide Step 2
Image 2.2: Preparing to Charge the Intercom.

This image shows the correct procedure for connecting the charging cable to the intercom unit.

CallToU Intercom Charging Guide Step 3
Image 2.3: Charging Indicator Lights.

This image details the different indicator light behaviors during the charging process, from initial connection to full charge.

2.2 Emparellament d'unitats d'intercomunicació

For two or more units to communicate, they must be set to the same channel.

Video 2.1: How to Pair CallToU Wireless Home Intercom Units. This video demonstrates the steps required to pair two CallToU intercom units by setting them to the same channel for communication.

  1. Turn on both intercom units by pressing and holding the power button.
  2. Press the "CH+" or "CH-" buttons to select a desired channel. Ensure both units are set to the identical channel.
  3. Confirm both intercom channels are matched.

3. Instruccions de funcionament

3.1 Comunicació bàsica (PTT)

To speak, press and hold the PTT (Push-To-Talk) button. Release the button to listen.

CallToU Intercom PTT Button
Image 3.1: Push-To-Talk (PTT) Button.

This image highlights the large PTT button on the intercom unit, designed for easy pressing during communication.

CallToU Intercom Double PTT Button
Image 3.2: Double PTT Button.

This image shows the intercom unit featuring a double PTT button for convenient operation.

3.2 VOX Hands-Free Function

The VOX (Voice Operated Exchange) function allows you to transmit your voice without pressing the PTT button. This is useful when your hands are occupied.

CallToU Intercom VOX Function for Elderly
Image 3.3: VOX Function in use.

This image illustrates the VOX function, showing an elderly person communicating hands-free from their bed, and a caregiver responding.

How to Set the VOX Function:

  1. Press "CH+" or "CH-" to select the same channel on both units.
  2. Hold the power button to turn off both walkie-talkies.
  3. Hold "CH+" and the power button together until you hear a "beep" and see the flashing light. This activates VOX.
  4. To disable VOX, turn off the walkie-talkie, then hold "CH+" and the power button together until you hear a "beep beep".
CallToU Intercom How to Set VOX Function
Image 3.4: Steps to Set VOX Function.

This image provides a visual step-by-step guide on how to activate and deactivate the VOX hands-free function on the intercom unit.

3.3 Ajust del volum

The intercom features 8 adjustable volume levels.

  1. Press the "VOL+" button to increase the volume.
  2. Press the "VOL-" button to decrease the volume.
CallToU Intercom 8 Adjustable Volume Levels
Image 3.5: Volume Adjustment.

This image shows an elderly person using the intercom with headphones, illustrating the 8 adjustable volume levels.

3.4 Bloqueig del teclat

The keypad lock feature prevents accidental button presses that could change channels or settings.

Video 3.1: How to Lock Keyboard on CallToU WT42 Intercom. This video provides a demonstration of how to activate and deactivate the keypad lock feature on the intercom unit.

  1. To lock the keypad, hold the "CH-" button until you hear a "DI" sound.
  2. To unlock the keypad, hold the "CH-" button again until you hear a "DIDI" sound.
CallToU Intercom Keypad Lock
Image 3.6: Keypad Lock Feature.

This image shows a child using the intercom, with an overlay explaining how the keypad lock prevents accidental presses.

3.5 Indicator Light Alerts

  • Transmitting/Charging: The PTT button light will be red.
  • Recepció: The PTT button light will be green.
CallToU Intercom Indicator Light Alert
Image 3.7: Indicator Light Alerts.

This image displays the intercom unit and explains the meaning of the red (transmitting/charging) and green (receiving) indicator lights.

Video 3.2: How to Use CallToU Wireless Home Intercom. This video provides a comprehensive guide on the general usage of the CallToU wireless intercom system.

4. Manteniment

4.1 Neteja

To clean the intercom units, use a soft, dry cloth. Do not use abrasive cleaners or solvents, as these can damage the unit's surface.

4.2 Cura de la bateria

To prolong battery life, avoid fully discharging the units frequently. Charge them regularly, especially when the low battery alert is activated. Store the units in a cool, dry place when not in use for extended periods.

CallToU Intercom Upgraded Battery and Chip
Image 4.1: Upgraded Battery & Chip.

This image illustrates the internal components, highlighting the upgraded chip for stronger anti-interference and increased charging current for better battery performance.

5. Solució De Problemes

ProblemaCausa possibleSolució
No communication between units.Units are on different channels.Ensure both units are set to the same channel (refer to Section 2.2).
Senyal feble o intermitent.Les unitats estan fora de l'abast o obstruïdes.Move units closer together or to an area with fewer obstructions. Ensure no large metal objects are between units.
Loud beeping sound.Alerta de bateria baixa.Plug the unit into the charger immediately. Keep units charged to avoid this alert.
La unitat no s'està carregant.Incorrect charger/cable or faulty connection.Use only the original Type-C charger and cable. Ensure the cable is securely connected to both the unit and the power source. Check if the unit is turned OFF before charging.
Constant static noise.Interference on the current channel.Switch to a different channel to find a clearer frequency. The system offers 16 channels.
Keypad buttons unresponsive.El teclat està bloquejat.Unlock the keypad by holding the "CH-" button until you hear a "DIDI" sound (refer to Section 3.4).

6. Especificacions

CaracterísticaDetall
MarcaCallToU
Número de modelWT42 DBM
ColorNegre
Nombre de canals16
Interval de conversa màxim3300 peus
Capacitat de la bateria1000 mAh (recarregable)
Durada mitjana de la bateria (mode d'espera)Fins a 36 hores
Temps de càrregaAproximadament 6 hores per a la càrrega completa
Protocol de connectivitatUHF
Nivell de resistència a l'aiguaResistent a l'aigua
Nivell de soroll30 decibels
Components inclososUser Manual, Type-C Charging Cable

7. Garantia i assistència

7.1 Garantia del fabricant

The CallToU WT42 DBM 2-Way Wireless Intercom comes with a Garantia del fabricant de 1 anys des de la data de compra. Aquesta garantia cobreix els defectes de materials i de fabricació en condicions d'ús normal. Conserveu el comprovant de compra per a reclamacions de garantia.

7.2 Atenció al client

For technical assistance, warranty claims, or general inquiries, please contact CallToU customer support through the following channels:

CallToU Customer Support Contact Information
Image 7.1: CallToU Contact Information.

This image provides the official website, email, and Facebook page for CallToU customer support.

© 2026 CallToU. All rights reserved.

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