I have CCIE certification with 15+ years experience. I am a professional consultant with rich experiences from many multi-million dollar projects (at&t, sprint, etc.) and vendor experiences from Cisco, Nortel. IPv6, MPLS, Multicast, Routing, Switching, QoS, Security, VoIP etc. and varies Cisco products are all my expertise. I can provide solutions to either large scale service providers, or small enterprises with timely response and high quality.
I've done many Asterisk projects for different sizes of companies.