IP and Routing Protocol : OSPF, ISIS, BGP, IPv4, IPv6
MPLS : LDP, RSVP-TE
Traffic Engineering
Multi-vendor Integration and Troubleshooting
Mobile Backhaul Network of 2G, 3G, LTE/4G using IP/MPLS Network
VPN Services: Layer 1 VLL (e-pipe, c-pipe, a-pipe, i-pipe), Layer 2 (VPLS, H-VPLS, STP/RSTP,VLAN Tag), Layer 3 (VPRN, IES, MP-BGP)
UMTS/3G : UTRAN (RNC, NodeB) Concept and Integration
Core Integration (MGW/MSoft/SGSN/GGSN): Concept and Integration
Triple-Play Network : BNG/BRAS, BSAN/ISAM, BSA, ISDN/POTS, GPON
Microwave/Radio Transmission : MPR
Optical and Electrical Transmission : Optical based OTB/ODF/ODB, DWDM, SDH/SONET, Power Meter, OTDR, E1/DDF Interconnection LSA/K52.
Redundancy...