Senior Software Developer
2010 - 2012ZTE- Improved a VoIP call scheduler/controller module in the NGN network, using protocols such as SIP, RTP, and H.248.
- Implemented a voice mailbox service for registered VoIP users using VMS.
- Handled functional level refactoring of a GTP-C functionality module in PGW (PDN Gateway).
- Optimized an internal event-driven state machine in a signaling controller module for GTP-C protocol.
- Implemented simultaneous FA/MAG functionality on PGW using PMIP protocol.
Technologies: Linux, C