The Zycoo U20 IP PBX Telephone System is a compact and efficient solution designed to meet the telephony needs of small businesses. It provides a robust platform for managing communications with up to 20 users and supports up to 10 simultaneous calls, making it ideal for growing offices that require a reliable and scalable PBX system.

The U20 features a single Gigabit Ethernet port for network connectivity and supports up to 10 SIP trunks, allowing for seamless integration with VoIP service providers. For traditional telephony needs, the system can be expanded with optional FXO/FXS modules, though these are not included and must be purchased separately.

Designed with user convenience in mind, the U20 supports a variety of voice codecs including G.711A, G.711U, G.729, G.723, G.726, and G.722, ensuring high-definition audio quality. It incorporates echo cancellation and noise reduction technologies to deliver clear and reliable voice communication.

The system includes a comprehensive range of call management features such as call forwarding, call waiting, call transfer, call hold, and call park. It also offers an integrated voicemail system with email notifications, support for up to 3-way conference calls, and customizable IVR (Interactive Voice Response) menus for efficient call routing. The U20's built-in call recording functionality ensures that important conversations are captured for later review.

Security is a priority with the U20, which includes support for secure SIP (TLS) and secure RTP (SRTP), as well as password protection and encryption for its web management interface. The system is designed to work with network firewalls and NAT configurations, ensuring a secure telephony environment.

Management of the U20 is facilitated through a web-based interface, allowing for easy configuration and monitoring. The system supports auto-provisioning of IP phones, SNMP for network management, and offers options for system backup and restore to safeguard against data loss.

The Zycoo U20 is compact, with dimensions of 200mm x 200mm x 40mm and weighs approximately 0.8kg. It operates efficiently within a temperature range of 0°C to 40°C and has a power consumption of around 15 watts. The system is compliant with CE, FCC, and RoHS standards, ensuring it meets rigorous safety and environmental requirements.

Overall, the Zycoo U20 IP PBX Telephone System provides a reliable and scalable communication solution for small businesses, offering essential features and ease of use in a compact and efficient package.