
Compact Space Saving 16 224 Ports Analog PBX Telephone Exchange. Flexible Port Expansion: Supports 16 to 224 ports to adapt to business growth. Modular Structure Design: Enables easy upgrade and daily maintenance for the system. Full Duplex Transmission: Ensures clear, interference-free voice calls with stable analog signals. Compact Space Saving: Fits any office environment with a space-saving design. 12-Month Warranty: Includes 100% factory inspection and a 12-month full unit warranty. Free Usage Guides: Provides free manuals and installation videos for users. Full Customization: Offers full customization, customization from samples, designs, and minor customization. ISO Certified Quality: Manufactured under ISO9001, ISO14001, and ISO45001 quality management systems.