Adtran is a leading provider of networking and communications solutions. Their primary focus is on open, disaggregated networking and communications solutions that enable voice, data, video, and internet communications across any network infrastructure. Find Suppliers in KSA . 
Here are some of their main product categories:
Open Optical Networking:
Open line systems: This includes products like the FSP 3000 open line system, which provides flexible and scalable optical transport solutions.
Open terminals: The M-Flex800 and TeraFlex OpenFabric Series offer high-performance, low-latency optical transport solutions.
Access and aggregation: Products like the S-Flex and AccessFlex series provide high-capacity, high-performance access and aggregation solutions.
Pluggables and subsystems: Adtran offers a range of pluggable modules and subsystems, such as coherent optics and DWDM modules.
Residential Solutions:
Optical network terminals (ONTs): These devices connect homes and businesses to fiber-optic networks.
Mesh Wi-Fi gateways and satellites: Adtran offers a range of Wi-Fi solutions, including mesh Wi-Fi systems for improved coverage and performance.
Service delivery gateways: These devices provide broadband access and voice services to residential customers.
Business Solutions:
Ethernet switches: Adtran offers a wide range of Ethernet switches for various network applications.
VoIP/SIP gateways: These devices enable voice over IP (VoIP) communication.
Session Border Controllers (SBCs): SBCs provide security and control for VoIP traffic.
Cloud Software:
Adtran offers cloud-based software solutions for network management and automation.
Timing and Synchronization:
Adtran provides timing and synchronization solutions for critical network infrastructure.
Services:
Adtran offers a range of professional services, including network design, implementation, and support.