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  • NetMedia Caller-TV (CTV1) — User Manual and Installation Guide

    August 31, 2026 4 min read

    NetMedia Caller-TV (CTV1) — User Manual and Installation Guide

    Full text manual (for reference)

    User's manual and installation guide for the NetMedia Caller-TV (model CTV1) — a legacy device that displays Caller-ID information from a home phone line directly on a television screen, using your existing telephone company Caller-ID/Call Display service.

    Overview

    Caller-TV connects between your phone line and TV (or between your phone line, other video source, and TV) and, after the first or second ring, overlays the caller's name and number at the bottom of the screen in large letters. Depending on the installation chosen, it can display info on top of a live TV channel, in Picture-in-Picture (PIP), or on its own "blue screen" when no other video source is active. There are no buttons or remote controls — it works automatically whenever a call comes in, and it retains the last caller's information until the next call.

    Caller-ID/Call Display service must be activated by the telephone company for this device to work. Caller-TV is S-Video compatible with the optional Caller-TV S-Video Adapter Kit.

    Package Contents

    • Caller-TV Call Display Unit
    • Wall transformer (power supply)
    • User's manual and installation guide
    • RCA video connection cable
    • RJ11 telephone connection cable

    Additional cables may be needed depending on your setup.

    Choosing an Installation

    Which installation to use depends on the TV's available inputs:

    • TV with only an ANT/CABLE connection: use the VCR + Modulator, VCR without video input, or Cable Box + VCR modulator setups.
    • TV with standard Video Inputs (RCA): use TV only, VCR + TV, Cable Box + VCR + TV, or Satellite Receiver + TV setups.
    • TV with S-Video input: same setups as above but using the optional S-Video Adapter Kit.

    Installation with TV Only

    Connect Caller-TV's Video Out to the TV's Video 1 input, connect the telephone line and cable TV through the unit, and set the TV to Video 1. Caller-ID information (and the last-call blue screen) only appears while the TV is on the Video input — not on cable channels. Works well with PIP televisions.

    Installation with VCR and TV

    Route video through the VCR/DVD unit; set the TV to Video 1 and use the VCR to change channels. Caller-ID appears over all cable channels this way. Turn off the VCR to view the last call's info.

    Installation with Cable Box, VCR and TV

    Cable box feeds the VCR, which feeds Caller-TV, which feeds the TV's Video 1 input; use the cable box to change channels. An optional connection exists, but using it means Caller-ID won't display while the TV is in ANT/CABLE mode. Turn off the VCR to review the last call.

    Installation with Satellite Receiver and TV

    Similar wiring using a satellite receiver in place of a cable box; set the TV to Video Input, use the satellite receiver to change channels, and power off the receiver to view the last call.

    Installation with SAT/VCR/DVD, Modulator and TV (Whole-House)

    Use a NetMedia RF modulator (tuned to channel 88 in the example) to distribute the Caller-TV overlay to multiple TVs throughout the house via the antenna/cable distribution system. Each TV must be in ANT/CABLE mode tuned to the modulated channel to see the Caller-ID overlay.

    Installation with VCR and TV Without Video Input

    For TVs lacking a video input, route through the VCR's antenna/RF output and tune the TV to VCR channel 3 or 4.

    Troubleshooting

    • Cable/antenna/satellite system must be properly grounded — consult an electrician or installer.
    • Confirm the TV is set to the correct Video Input for your chosen installation.
    • Double-check all wiring against the installation diagram.
    • Confirm the power supply is plugged into an active outlet and connected to the unit.
    • Confirm the unit is connected to an active phone jack with Caller-ID/Call Display service enabled — verify with your phone company.
    • Call Forwarding, if active, will prevent Caller-ID display.
    • If on a second phone line, that line also needs Call Display service active.
    • Scrambled/erratic characters usually indicate phone line noise, not a defective unit (unless every call is affected).

    Caller-TV may not display every call — this depends on data provided by the phone company (may be affected by call origination or caller ID blocking).

    Regulatory & Safety

    This device complies with FCC Part 15 (Class B) and Part 68. An FCC-compliant RJ11 cord/plug is provided; the sum of all device Ringer Equivalence Numbers (REN) on one phone line should generally not exceed 5.0 — contact your phone company to confirm for your area. If the equipment causes network harm, the phone company may temporarily discontinue service (with advance notice where possible) and will inform you of your right to file an FCC complaint. Do not disassemble the unit — no user-serviceable parts inside. Keep away from water, don't overload outlets, and don't place anything on the cords.

    Limited Warranty

    NetMedia, Inc. warrants parts against defects in materials or workmanship for one year from the original retail purchase date, and will replace a defective part at no charge (customer pays transportation to/from NetMedia). Proof of purchase is required. Warranty is valid only for products purchased and operated in the USA, does not cover labor/installation charges, and excludes damage from misuse, accidents, Acts of God (e.g. lightning, power fluctuations), improper installation/maintenance, or unauthorized modification. NetMedia is not liable for consequential or incidental damages, and does not warrant compatibility with all telephone equipment or services.

    For technical assistance: NetMedia, Inc., 10940 N. Stallard Place, Tucson, AZ 85737 · (520) 544-4567 · www.caller-tv.com