Global Tech economic multi-service SDH is fully compliant with ITU-T and China domestic SDH standard, and can benefit your network with compact design...
Guangdong Global Telecommunication Technology GT5200SV2 series IP PBX adopt advanced hardware and software technology and telecom grade design to ensu...
Global Tech GT-SDH-155A 63E1 SDH is the compact STM-1 level Synchronous Digital Hierarchy (SDH) transmission system compatible with ITU-T standard. It...