CEL-FI is Nextivity’s brand of self-configuring, environmentally aware, indoor coverage solutions. Each CEL-FI system consists of two units. The Network Unit is placed in the area where the strongest native signal can be received from the carrier network (signal levels as low as -120 dBm are acceptable). The Network Unit comprises a transmitter and receiver which communicates with the cell tower. The Coverage Unit is placed in the center of the home, communicates wirelessly with the Network Unit and “lights up” the interior of the house with significantly enhanced signal levels, thus enabling better quality calls and greater data throughput.

CEL-FI is a smart signal booster. That means it relies on intelligent, self-organizing algorithms to ensure you benefit from the largest area of coverage without compromising or interfering with your mobile operator’s networks or impeding other subscribers’ signals. CEL-FI does not require any new equipment, any configuring, or any changes to existing network infrastructure or mobile devices. It is also a plug and play device, which means that there is no need for professional installation, no drilling, and no cables. In addition, CEL-FI has been recognized for its superior design and effectiveness and is the only consumer booster authorized for use by the communications commissions in Australia and the United Kingdom, and the only Smart Booster designed to meet the new FCC Safe Harbor 2 specifications that allow very high gain (very high signal gain is necessary to make low level signals useful in a large coverage area).

No. The CEL-FI system only needs to have at least 1 bar of native cellular signal, in at least one spot of your home to be able to cover your whole home or office space.

Yes, CEL-FI smart signal boosters can support both voice and data simultaneously. Note that CEL-FI RS1 and RS2 models do not support LTE.

No. CEL-FI does not require any maintenance. The CEL-FI systems will self-adjust and reconfigure automatically to changing cellular networks situations.

The Nextivity IntelliBoost Baseband Processor is the first core processor designed specifically to optimize the indoor transmission and reception of 3G and 4G/LTE wireless signals. With advanced filtering, equalization and echo cancellation techniques, Nextivity has developed an embedded architecture which delivers unprecedented in-building data rates and pervasive 3G and 4G/LTE connectivity. The IntelliBoost processor ensures that CEL-FI products never negatively impact the macro network while providing maximum coverage.