SUMMARY:

• 8+ years of experience in designing, implementing and maintaining enterprise level VoIP networks.
• Experience in VoIP Telephony and expert knowledge of SIP - signaling protocol.
• Knowledge of PBX, media gateways and gateway controller.
• Extensively worked on Cisco ICM, CVP, CUCM, CUIC, Finesse, Gateways and EIM/WIM (Email/Chat).
• Active participation in UCCE installation.
• Extensive hands on experience on working with troubleshooting of VoIP network using Cisco call manager, Third Party voice mail server, voice gateways, Avaya CM and Broadsoft Application server.
• Practical understanding of UCCE Deployment models.
• Involved in migration projects to cisco UCCE from Avaya/Nortel.
• Strong design knowledge and support of IP-PBX, AVAYA systems, Data, VoIP, Video networks.
• Troubleshooting VoIP protocolsSIP, RTP, H.248, H.323, IAX, and MGCP.
• Strong knowledge of relevant IETF RFCs, IEEE&ITU-T standards.
• Experience in SIP trunking and working knowledge of Broadworkstrunking algorithms.
• Experience with handling and troubleshooting SBC (Acme) and ESBC.
• Experience with working on WIRESHARK, Abacus and Agilent network analyzer.
• Experience in software sanity, acceptance, progression testing, automation design, development and support.
• Full understanding of the life cycle of a software development and testing process.
• Planned, designed, implemented and supported IPT application and network infrastructure for small, medium and large enterprise type of businesses located world-wide.
• Worked on Sonus policy server(PSX) and PSTN gateway(GSX)
• Excellent Team Co-ordination skills and good team player with both excellent communication, Interpersonal skills
• Wide system view, excellent analytical skills, ability to handle complex tasks, high learning

TECHNICAL SKILLS:

Protocols: SIP, SDP, SNMP, UDP, TCP, H.323, HTTP and RTP.

Hardware: Cisco Routers and Switches, Cisco IP Phones, SONUS PSX,GSX, Acme Packet SessionBorder Controller 4200 and 4250

Test Tools: Quality center 10, Wireshark, HP Quality Center, SPIRENT Abacus and Agilent.

Soft switches: Broadsoft, Avaya CM, Cisco Call Manager, IP Centrex.

Languages/Scripting: HTML, Linux, XML, UML and SQL.

Cisco: ICM, CVP, CUSP, EIM/WIM, Finesse and Ingress & Egress gateways.

Edge: SBC

Carrier Lines: T1, DSL and E1

Operating Systems: Windows, Linux, and Cisco IOS

PROFESSIONAL EXPERIENCE:

Confidential, San Antonio

Voice Network Engineer

Responsibilities:

• Performed hands-on and automated VOIP testing of the Geico telephony from switches to phones, servers, clients, and, in some cases, peripheral or third-party devices, for feature functionality and verification of a quality product for voice and telephony, conferencing, messaging, presence and Instant Messaging (IM), clients, and communications applications for Unified Communications system Enterprise Software.
• Worked on hosted VoIP services and SIP Trunking.
• Telephony Connectivity - Analog, T1, E1, ANI, DNIS, PRI, Etherspeak
• Data Connectivity- TCP/IP, Ethernet
• Tested call flows with PSX and GSX.
• Worked on inSSIDer for analyzing Wi-Fi networks.
• Capture the SIP, UDP and RTP using the Wireshark network Analyzer, Empirix-Hammer and Broadsoft logs.
• Worked on PSX CLI to add routes and policies.
• Review Event Logs system configuration and call flow
• Run traces/Telnet into switches, phones etc.
• Capture data (all server logs, Application & System Event logs).
• Trouble Shoot SIP, analog, PRI & voice quality Issues
• Ixia was used to validate Layer2/3 functionality and AX4000 was used to validate SONET functionality.
• Configured routers, switches and PBXs.
• Active Participation in the installation of cisco UCCE devices and servers.
• Proven experience of migration projects to Cisco UCCE from Avaya/Nortel.
• Provisioned users on Cisco Call Manager.
• Experience in SIP Troubleshooting involving SBC, CUSP and other components.

Confidential

Voice Network Administrator

Responsibilities:

• Building Site Partitions, Calling Search Spaces, Route plans, and Translation Patterns in Call Manager.
• Voice Gateway configuration and deployment. Troubleshooting Implementation of Cisco LAN/WAN Infrastructure Switch & Routing Configuration and Deployment Network Migrations Testing and Troubleshooting.
• Configuring Clusters and Plan implementation tasks, including change management and communication in Call manager.
• Runs advanced show commands and demonstrates a solid understanding of PRI's, FXS ports, and dial-peers.
• Validate installed solution against design record to ensure successful product deployment.
• Provided technical support by phone, remote screen sharing, and in person when required, to maximize first-call solve rates for local and remote users.
• Completed moves, adds, changes in for Call manager and Unity related issues but not limited to.
• Perform proactive monitoring of voice systems, alarms and alerts to identify those components that may lead to or already are causing voice/video/data degradation or failure. Provide mentoring,, and support for junior technical staff and Contractors.
• Tier 3 Voice Engineer for LAN/WAN issues and resolve Networking, Call Manager, Unity, Meeting Place, and call routing related issues daily.
• and Leading a team of Voice Engineers on how to Deploy VoIP along Cisco Unified Communications Manager. Work independently as well as with a team of engineers.
• Ensuring Team Exceeds SLA using Service Now.
• Communicate with Managed Service teams on service issues, collecting information, and determining root cause of issues.
• Maintained and inventory licenses in phone systems, servers, quality management, and workforce management systems to ensure they are up to date.
• Documented network problems and resolutions for future .
• Provisioned PRI, BRI, Private Port SIP, E1 Circuits and POTS.
• Troubleshoot networks, systems, and applications to identify and correct malfunctions and other operational difficulties.
• Established and perform maintenance programs following company and vendor standards.
• Recommended changes to improve systems and network configurations and determine hardware or software requirements related to such changes.
• Deployed telecommunications services in a call center environment Experienced with outbound dialing technologies.

Confidential, NJ

Voice Network Engineer

Responsibilities:

• Responsible for configuring, testing, and certifying Cisco, Adtran and Carrier Access routers for use in Qwest's VOIP network.
• Involved in call flow analysis using Wireshark.
• Involved in CUCM 9.0 Upgrade.
• Configured mobility features such as mobile voice access, extension mobility, and remote destination profiles in CUCM.
• Deployed new ICM environments, including the build of all components: Router, Logger, PGs, AW/HDS, and CUIC.
• Troubleshoot various call routing issues within UCCE and CVP, using my knowledge of voice protocols and Cisco voice products.
• Upgraded ICM from 8.5.1 to 8.5.4.
• Implemented ICM 9.0 and CVP 9.0.
• Troubleshoot various call routing issues within UCCE and CVP, using my knowledge of voice protocols and Cisco’s voice products.
• Deployed new ICM environments, including the build of all components, Router, Logger, PG’s AW/HDS, and CUIC.
• Conduct test defect analysis of SIP, DOCSIS, PCMM Protocols through SSH, Wire Shark and Agilent test tools.
• Troubleshooting Cisco and Polycom MGCP, SIP, and SIP-B endpoints for customer deployments.
• Develop strategies for replacement and upgrades of Cisco core networking elements.
• Developed technical support policies and procedures.
• Administered and configured Unity Connection, Cisco Emergency Responder, and Cisco UCCX.
• End to end call flow testing
• Tested SIP trunking algorithms
• Tested Feature access codes.
• Tested Broadworks announcements.
• Tested call detail records.
• Prepare test plans and test cases using Quality center.

Confidential, NY

CTI Developer/Admin.

Responsibilities:

• Involved in Deployment of new ICM environments, Including the build of all components: Router, Logger, PGs, AW/HDS, and webview.
• Troubleshoot ICM and CVP problems of all kinds.
• Involved in development of Jphone with is essentially a CTI client based out of Java.
• Built reports as per business requirements based out of AWDB.
• Worked on PG failure issues.
• Has good knowledge on ICM scripting in designing call flows.
• Also, involved in troubleshooting call flow issues.
• Administered all cisco UC and UCCE operational bug updates and upgrades, Includes daily scripting of ICM and IVR for business.
• Installed and setup CTIOS Client and CAD for various agent scenarios and setup appropriate screen pops per customer requirements.
• Installed and configured IPCC Express for small call centers and built all necessary scripts.
• Planned and tested enhancements and upgrades to VOIP systems.
• Built replica of production VoIP system in a lab environment. worked on speech technologies like VXML to develop speech systems.
• Proficiency in analysis of speech systems requirements to transform them to a Voice user interface (VUI) design.
• Worked with the design team to implement and test new applications and scripts in ICM design and production environments.
• Communicated with various telecom vendors, service partners and outsource providers for support of our call center infrastructure.
• Has experience on building regex strings for monitoring purpose in splunk.