I have around 10 years experience in Cisco Data networking and 5 years experience in Cisco VoIP telephony and security networks and implemented big VoIP networks I have designed and implemented Cisco Unified Communication projects consisting Cisco Call Manager, Unity Connection, IM&Presense with CUBE Gateways. Also configured the secure SIP Trunk communication from CUBE gateway to PSTN using the Cisco ASA firewalls Experienced in Routing (OSPF,EIGRP), Switching (VTP, STP, Etherchannel). VPNs (Site-2-Site, Remote Access, Anyconnect). WAN failover and highly resilient network Please contact me to discuss the requirements.