Category: Closed Caption System

Hamilton CapTel 840i

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Hamilton CapTel 840i is designed for individuals who have difficulty hearing over the phone. The CapTel Phone requires both a single analog or digital phone line (DSL with filter, cable phone, VOIP, etc.) and a high-speed Internet connection via Ethernet or WiFi.

Please Note: The CapTel Captioned Telephone is designed for people who have difficulty hearing over the phone. People who do not require captioning support for their telephone calls should only use the CapTel phone with the CAPTIONS featured turned off. The CapTel phone is intended to facilitate telephone communication between two or more parties on a telephone call. Any other use of the phone is considered a violation or misuse of the service.

Technical Specifications: 
  • Telephone Service
  • High-speed Internet Access (Ethernet or WiFi compatible)
  • Standard electrical power
  • Size: 9 inches x 6.5 inches x 7.5 inches
  • Weight: 2 pounds 10 ounces
  • Power:  AC Adapter: 6 VDC, 1670 mA, (barrel is negative), Adapter is UL listed.
  • Dial Pad: Large Keys: 0.75 inch x 0.70 inch
  • Display: 7 inches Backlit, graphical LCD color display, 840 x 480 pixels
  • Function Buttons: 3 Programmable Speed Dial, 1 Customer Service Speed Dial, Redial, Flash, Mute, Tone, Caption, Volume, Up/Down/Yes/No
  • Controls: Conversation: Amplification; when Captions on: 0-40 dB gain; when Captions off: 0-18 dB gain, Tone
  • Ringer: Ringer Volume: off, low, medium, high (0-87 dB at 1 meter)
  • Indicator Lights: Mute, Volume Levels (1 through 12), Captions On/Off
  • Handset Type: HAC (Hearing Aid Compatible)
  • Dialing: Phone Book (97 entries), Speed Dial (3 entries), Redial (Last 10 dialed numbers)
  • 4-Caption font sizes: Small 0.15 inch; Medium 0.20 inch; Large 0.25 inch; Extra Large 0.33 inch
  • Adjustable colors for background and font
  • Connections: Telephone line: requires RJ11 connection (can be standard analog line, VOIP, DSL with filter, FIOS. Does not support digital PBX system unless an analog port is available). 3.5 millimeter Neckloop/Headset, 2.5 millimeter Headset with microphone, Ethernet or WiFi wireless network, AC power
  • Conversation Memory: 500 lines of captions
  • Caller ID History: Info saved for last 99 calls
  • Answering Machine: 60 Recordable messages, Recordable greeting, Selectable number of rings before answer
  • Weight: 4.00 pounds
  • Includes 90-day money back guarantee.


Price Check
as of: 
Hamilton CapTel 840i

Sold By:

Captel Captioning Service
Captel Captioning Service Organization Type: 
The CapTel Captioning Service is offered by Ultratec Inc. (see separate entry) to provide realtime captioning of telephone conversations. Users of the CapTel Captioning Service must have a CapTel telephone (see separate entry), which is designed specifically to interact with the Captioning Service. CapTel Captioning Service subscribers place each call in the same way as dialing a traditional phone. As the user dials an outgoing call, the CapTel phone automatically connects to the Captioning Service. When the other party answers, the CapTel phone user hears everything that they say, just like a traditional call. Behind the scenes, an operator at the CapTel Captioning Service transcribes everything the other party says into written text. The written text appears on the display window built into the CapTel phone. The captions appear almost simultaneously with the spoken word, allowing the CapTel phone users to understand everything that is said either by hearing it or by reading it. Incoming calls must go through the Captioning Service to engage realtime captioning. The CapTel phone is available in a 2-line version that will automatically contact the CapTel Captioning Service for each incoming and outgoing call. The CapTel Captioning Service is available in 44 States and the District of Columbia. It is not available in Alaska, Delaware, Georgia, Louisiana, Massachusetts, and South Dakota. One free CapTel telephone is available to each active Federal employee who uses the Federal CapTel program.
Email address: CapTel@ultratec.ocm
Phone: 888-269-7477
Fax: 608-238-3008
Web Address: