Cisco, Network Equipment manufacturer / supplier in China, offering New CP-8800-A-KEM= PoE Network Crystal-Clear HD Audio Remote Work Cisco IP Phone Expansion Module, CP-8800-V-KEM 8800 Series Video Key Expansion Module 28 Button NEW for Communication & Networking, CP-7861-K9 Original New 16 Line UC 2 Ethernet Ports 7800 Series IP Phone and so on.