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This product is no longer manufactured and not available to purchase new through authorized Nextivity partners. 
We fully support this product and honor all active warranties.

Recommended alternative:
CEL-FI GO G41 (available globally)


4th generation Smart Cellular Coverage Solution for small businesses and residential areas.

Available in Asia, EMEA and Oceania
The CEL-FI SOLO Smart Signal Booster is designed to solve cellular coverage problems for voice and data. With up to 100dB of gain, it is the most powerful carrier-grade solution available. The CEL-FI SOLO covers up to 3,000 m² (1,500 m² in U.K.) of indoor space per system. Configure with included donor and server antennas, or expand options with outdoor or multiple server antennas. The CEL-FI commitment is to protect the operator’s network, deliver the best cellular performance, and be the easiest solution to install.

Key Technologies

IntelliBoost® Chipset

The CEL-FI IntelliBoost baseband processor is the first six-core processor designed specifically to optimize the indoor transmission and reception of 3G/4G/5G wireless signals. With advanced filtering, equalization and echo-cancellation techniques, CEL-FI’s architecture delivers unprecedented in-building data rates and pervasive 3G/4G/5G connectivity.

Network Safe

Self-organizing edge intelligence ensures that CEL-FI SOLO does not interfere with other indoor wireless products such as Wi‑Fi routers, Small Cells and Distributed Antenna Systems (DAS). High speed Automatic Gain Control ensures that Cel‑Fi SOLO is unconditionally network safe and enables more simultaneous calls and higher data speeds.


The CEL-FI WAVE App is designed for users to activate, manage and troubleshoot the CEL-FI SOLO. The app connects to the device via Bluetooth and is available on smartphones and tablets. It is globally trusted and built on carrier-grade security. The device data is synced to the WAVE Portal which allows for additional data modeling and reporting.

Key Features

Industry Leading 3G/4G/5G Voice and Data
Smart Signal Booster with IntelliBoost® Chipset Smart Technology
Scalable Solution for up to
3,000 m2 (1,500 m2 in U.K.) per System
15 Min Quick Install or Advanced Install with Additional Antennas
Setup and Management App
Network safe and Carrier Approved

Built-in LTE Modem Option

CEL-FI SOLO with LTE Modem
The CEL-FI SOLO is also available in an LTE modem variation. With its built-in LTE modem, the unit wirelessly connects to the CEL-FI WAVE Portal, which is a web-based platform that is accessible from any computer or mobile device. There, users can view real-time system performance data, adjust alarm policies and notification settings, as well as perform system software updates.

Deployment Solutions

Quick Installation

The CEL-FI SOLO comes with a CEL-FI Whip Antenna and CEL-FI Patch Antenna. These can be used to get a system up and running in minutes.
Included Antennas

Advanced Installation

If you need a more powerful donor antenna you can connect the CEL-FI SOLO to an outdoor Wideband Directional Antenna. If you need to get coverage to more areas of your building, you can use Splitters and connect to multiple Server Antennas.
External Antenna
Splitting Server Antenna


Kit: KH41-9B-STD
Power Supply
Coax Cable (10m)
Kit: KH41-9B-PRO
Power Supply
Coax Cable (10m)

Coax Cable

Kit: KH41-9B-003
Power Supply

Tech Specs


Model: H41-Axx
Band Support: 1,3,5,8,28L
*Note: Band 28L supports 758-788MHz UL and 703-733MHz DL

Model: H41-9xx
Band Support: 1,3,7,8,20


(check individual product regional compliance)
3GPP TS 25.143 Rel.10 3GPP TS 36.143 Rel.10 ISED (Industre Canada) Bluetooth BQB CE
Operating temp.: 0° to 40° C Relative humidity: 0% to 95%, noncondensing


Height: 163mm
Width: 158mm
Length: 80mm

Antenna Ports

Frequency: 698 – 2700 MHz
Impedance: 50 Ohms
Connector: SMA Female
Port Isolation: 110db

Buy Now

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