Mobile Phone Signal Boosters

About this range

Stay in contact when you leave the city behind with a mobile phone signal booster. Boosters amplify weak signal from distant towers, helping your phone hold calls and data in fringe coverage areas across regional Australia.

We stock Cel-Fi GO boosters with options for the Telstra and Optus networks, plus the Cel-Fi ROAM R41 coverage solution. Buy online with Australia-wide shipping, or have your booster supplied and fitted at our Burwood workshop.

3 products

Buying guide

Mobile signal in your vehicle explained

A carrier-approved repeater (often called a booster) can turn one bar of signal into a usable call in country areas. In Australia, which device you buy decides whether it's legal.

  1. Legal only with carrier approval

    The ACMA says unapproved mobile phone boosters are illegal to use, supply or have. Repeaters are legal only with the carrier's permission, and approved models are on the ACMA's exempt list.

  2. One network at a time

    Cel-Fi ROAM repeaters work with Telstra, Optus or Vodafone, one network at a time, set up through the WAVE app.

  3. It needs some signal

    A repeater improves weak signal; it can't create signal where there is none. The Cel-Fi ROAM needs at least one bar to work.

  4. The antenna

    An external antenna mounted well on the vehicle makes the biggest difference to what the repeater can pick up.

Choosing a phone booster

The first decision is network. Cel-Fi GO boosters are configured for a specific carrier, so choose the Telstra or Optus version that matches the SIM you travel with, and think about which network has towers along the routes you actually drive.

Antenna choice and mounting also make a real difference, since the external antenna is what pulls in the weak signal for the booster to amplify. The Cel-Fi units we stock are paired with quality RFI antennas, and the Cel-Fi ROAM R41 offers a packaged mobile coverage solution. A booster helps most in fringe areas, though no booster can create signal where none exists.

Related categories

Common questions

Are phone boosters legal in Australia?

Unapproved boosters are illegal to operate, supply or possess (ACMA). Cellular mobile repeaters are legal with the carrier's permission, and approved models, such as Cel-Fi GO units, appear on the ACMA's list of exempt repeaters.

Does it work on every network?

The Cel-Fi ROAM works with Telstra, Optus or Vodafone, one at a time, chosen in the WAVE app.

Will it give me signal where there is none?

No. A repeater needs some signal to work with: the Cel-Fi ROAM needs at least one bar.

Keep going

UHF RadiosTalk where there is no phone signal54 in range AntennasAntennas8 in range