-Solutions Integration organization senior engineer role with detailed experience designing, commissioning and testing flexible, scalable, reliable and secure network infrastructures for mission critical Carrier VoIP (CVoIP) and A2 SIP-based Multimedia Platform applications. Focus on network engineering, commissioning, testing and verification of network performance, reliability & robustness-Driving redundancy testing and failure detection objectives for AT&T’s West Palm Beach, FL C20 Complex and subtending remotes; obtaining required CVoIP fault tolerances (re-routing in less than 1 second, no dropped calls)-Completed three 1AESS switch-cuts onto AT&T’s West Palm Beach, FL C20 (Miami Metro, Sunrise, Bayshore & Hallandale 1A sites)-Auditing VoIP network engineering designs (BGP, OSPF, QoS, Security, L2/L3 Switching for LANs/WANs) ensuring end-to-end Carrier grade solutions deployments with five 9s reliability-Team leader role accountable for developing a detailed Method of Procedure (MOP) documentation process covering live CVoIP network changes (functionality, security policy & performance). Effort streamlined “SI MOP process” currently in full production-Lead peers to successful CVoIP deployments, significantly improving solutions integration efficiency rates-Achieved smooth C20/C20c/C20a & A2 solution integrations with 100% deployment & testing success rates-Support key account teams across the world, driving Carrier and Enterprise VoIP solutions tailored for specific customer needs-Collaborate with global product support teams on critical field issues towards resolution, recovering networks from both partial and complete outages

-Performed design, audits, troubleshooting & implementation duties involving Carrier and Enterprise VoIP, ATM & Frame Relay architectures-Performed extensive remote integration, solution testing, and network troubleshooting of LAN/WAN topologies utilizing VoATM, VoIP, SIP, SIP-T, RTP, L2/L3 QoS, H.248, H.323, OSPF, BGP, IPSec VPNs, IP Multicast, IPTV, SNMPv2c/3, ATM & Frame Relay interworking-Deployed & tested CVoIP network infrastructures for US, Canadian Service Providers, ISPs, CDMA Operators & MSOs: AT&T, Verizon, Qwest, CenturyTel, CenturyLink, Sprint, Comcast, Cox, Clearwire, Alltel & Allstream. Solutions include:--GB/Nortel Call Server 2000 (TDM/ATM/IP Core Hybrids) and Call Server 2100 IP-PBX designs utilizing G.711/G.729 media & H.248/H.323 signaling gateways, T.38 Fax & RFC2833 functionality--Carrier-Hosted network solutions utilizing appliance-based Firewalls, Border Control for direct Carrier-Enterprise architectures--SIP Lines & SIP-T topologies, SIP-PBX, IP Centrex, ISDN PRI/BRI, IP SS7 Backhaul, H.323, H.248 and NCS signaling topologies--Carrier-to-Carrier VoIP Peering networks utilizing Session Border Control (SBC) & Border Control Point (BCP) Media Proxy security--Complex multi-vendor, multi-layered switched internetworking solutions involving Nortel, Cisco, HP, Microsoft, Juniper & Motorola equipment-Designed, commissioned & tested Remote-Access IPSec VPNs and B2B IPSec VPNs (Nortel VPN 600 & Avaya SR2330 VPN Routers)-Remotely commissioned Service Provider CVoIP labs (Sprint, Embarq, Qwest) to mimic production network operations. Created detailed verification & test plans based on these infrastructures; resolved all integration issues identified during implementation phase delivering a Carrier Grade lab VoIP system-Completed US VoIP network deployments: Enterprises (Wal-Mart, Exxon Mobil), Academia (University of Texas, Georgia Tech, Ohio State) & Rural Telecom Cooperatives (Mt. Rural Tel, Silver Star Tel)

-Deployed, integrated & tested VoATM & NGN CVoIP Networks in the Caribbean, Central & South American regions. Projects completed:-DMS-100/200 TDM XA-Core to CS2K CVoIP network migrations for CODETEL (Dominican Republic), Cable & Wireless (Cayman Islands, Barbados, and Curacao), PRTC (Puerto Rico), TELEM (St. Maarten), PEMEX (Mexico) and Telefónica Manquehue (Chile)-Implemented & tested the following Access, Distribution & Core technologies:--Broadband access/edge aggregation topologies: ADSL, PPPoE, PPPoA, 802.1Q/P VLANs, RFC1483-Bridged/Routed, L2TP, PPTP, L2F, Traffic Shaping & Policing, Web Captive Portal, NAT/PAT, DiffServ QoS & IPSec-based VPNs--VoATM/VoIP Media & Signaling Gateways for VoIP/VoATM access, PRI Backhaul, IP SS7--Core & Distribution topology architectures providing VLAN segmentation, VRRP, STP/RTSP/MST, QoS, NAT/PAT, RIPv2, OSPF, BGP, ECMP, Route Redistribution & IP filtering policies--Alteon Layer 4-7 Web Switches: Switched Firewall, Server & Firewall Load Balancing, Layer 7-URL/Cookie Redirection, Content Caching and DoS/DDoS mitigation techniques--Nortel’s MSS15K Switches providing ATM, Frame Relay, Ethernet, VRF, OSPF, BGP, MPLS Layer 2 VPNs & RFC2547bis Layer 3 VPNs

-Engineered Nortel's DMS-100/200/250/300/GSP/MMP telecommunication switching solutions for US, Caribbean & International Carriers-Performed lab staging of Nortel’s DMS-100/200 Class-4/5 TDM switch features on customer image loads-Responsible for documenting lab trial results on new feature functionality to product line managers & software designers-Quoted DMS-GSP “Carrier’s Carrier” telecom switching platform solutions offering IXC services, Intelligent Network, integrated STP, operator services, gateway functionality and PBX access functionality for global carriers-Technologies implemented: SS7 (SSP, STP, SCP, TCAP, ISUP, TUP) signaling, ANSI/ETSI ISDN PRI Trunking, CAS (LoopStart, GroundStart, MFC-R2, R1, FGD) Trunking, Multi-Frequency (MF) signaling, V5.2 lines & country-specific ISUP signaling variants-Physical topologies implemented: DS-1/3/512, E-1/3, SONET OC-3/12/48 and SDH STM-1/4/16