SUMMARY

• Network Engineer with around 7 years of experience primarily voip networks and deep understanding of Converged data, Voice and Video technologies in multi - vendors’ environment.
• Experience in working with Cisco Catalyst series 2900, 3560, 3750, 4500, 4900, 6500.
• Experience in working with Cisco 2800, 3600, 3800, 3900, 7200 7600 series Routers.
• Strong understanding of CUCM/Unity/UCCX and SIP/PRI troubleshooting
• Strong knowledge of SIP, TCP/IP Networking, PSTN, DHCP, VPN, LAN and WAN technologies.
• Knowledge of various network protocols including: TCP, UDP, IP
• Knowledge and experience with PRI
• Proficient in SIP call flow tracing with detail analysis and monitoring skills.
• VoIP/Network development and in Quality assurance for client/server, network and web based Products. Experience in configuration, maintenance and troubleshooting of CUCM 8.5 and CUC servers.
• Implemented and verified various CUCM features and services like Device Pool, CSS, Partitions, call park, etc.
• Worked on Voice gateways and signaling protocols: MGCP, SIP, H.323, SCCP, digital PRI/T1, Analog FXO/FXS
• Upgraded IOS versions on Cisco Switches and Router Through Cisco Network Assistance and TFTP
• Strong knowledge of TCP/IP fundamental.
• Hands of knowledge on installing configurations on Cisco Call Manager platform.
• Respond to the needs and questions of users concerning their access of voice network resources.
• Ability to install and maintain VoIP infrastructure components
• Ability to configure and troubleshoot Cisco Voice Gateways.

TECHNICAL SKILLS

LAN Technology: Ethernet, Frame relay, Gigabit Ethernet

Switches: Cisco catalyst 2900,2960,3560,3750,4500,4900

Switching: ARP, 802.1q, VLAN, VTP, STP (802.1d), RSTP (802.1w), PVST, RPVST and Ether-channels.

Routers: Cisco 2600, 2900, 3600, 3900, 7200 and 7600 series

Routing Protocols: OSPF, BGP, EIGRP, RIPV1/V2, PBR, Route Filtering, Redistribution, Summarization, and Static Routing.

WAN Technology: Frame relay, HDLC, PPP and E1,T1,E3& T3

Gateway Redundancy: HSRP, MGCP, SIP, SCCP, ISDN PRI

Other Protocols: DNS, DHCP, SNMP, NAT

Operating System: Microsoft Office, Windows Server 2003, Windows Server 2008

Network Management Tools: Wireshark, Netflow Analyzer

PROFESSIONAL EXPERIENCE

Confidential, NJ

Network Engineer

Responsibilities:

• Experience on Cisco router/switch configurations and troubleshooting for agents on calls.
• Ability to perform complex troubleshooting to isolate, diagnose, and correct network problems during installation.
• Strong knowledge and experience with Local Area Network (LAN)/Wide Area Network (WAN) environment and technologies including T1, DS3, MLPPP, MPLS, Wireless, VoIP, VPN, DMVPN, and Metro Ethernet.
• Knowledge of various network protocols including: TCP, UDP, IP.
• Experience with the Unified Communication platform installing and troubleshooting Voice issues.
• Primary responsibilities consists of configuring and supporting Cisco Unified communications systems including Call Manager 6&7, Unity, Unity Connections.
• Configure Voice gateways, correct dial-peer issues, CODEC G.711/G.729, hunt pilot/lists, line groups, and route patterns in CCM.
• Troubleshoot end-to-end call flow issues in enterprise market involving various VoIP elements.
• Troubleshoot call flow issues throughout the network flow from on net to off-net calls.
• Testing CDRs for various call scenarios such as Call transfer Attended and Unattended, Call forwarding Busy, Call forwarding No answer, Call forwarding unconditional, Call Hold
• Providing root cause analysis for technical issues and documenting them accordingly, troubleshooting issues related to call dropping, noise, one way audio, call routing.
• Configured and Installed Network/VOIP solution for remote sites small, mid-size and large.
• Document, troubleshoot and isolate problems encountered during testing.
• Worked in Windows 2007 environment
• Knowledge and experience with PRI.
• Experience working with Wireless Access Points.

Environment: T1, DS3, MLPPP, MPLS, Wireless, VoIP, VPN, DMVPN, and Metro Ethernet, LAN / WAN, CUCM 6 & 7, Unity, Unity connection, windows 2007, HP service manager

Confidential, NY

Network Support Analyst

Responsibilities:

• Worked with overseas team on daily basis to get hand off of ongoing issues, Incidents and pending tickets.
• Worked on Codecs G.729A. G.711, G.722, G.722A, G.729, RTP, H.323, SCCP and Gateway.
• Deployments and analyzing SIP flow using WireShark captured to troubleshoot SIP messages.
• Monitored, configured, and troubleshot router and network connections on a Wide Area Networks (WAN) using HP Openview.
• Developed database application and various reports in MS Access.
• Performed DBA related responsibilities, repairs and maintenance.
• Optimized database indexes and queries in SQL 2000 and 2005. Monitored daily backups of the databases.
• Configuration, maintenance and troubleshooting of CUCM 8.5 and CUC servers.
• Worked on Voice gateways and signaling protocols: MGCP, SIP, H.323, SCCP, digital PRI/T1, Analog FXO/FXS.
• Coordinate with seniors for deploying, and maintaining the company's in-house IP telephony voice communication architecture and its associated network connections and component hardware
• Test environment installation of Cisco Core, Distribution layer Routers / Switching /Cisco Call Manager/ Cisco 7962 and 7975 phones and Cisco UC.
• Analysis of multiple Local/LD vendors for PRI/SIP trunks and managed services.
• Managed and troubleshoot Cisco Analog and Digital Voice gateways/devices.
• Implemented and verified various CUCM features and services like Device Pool, Region, AAR, SRST, Call Admission Control, CSS, Partitions, Soft key template, call park, call back, shared line, Extension mobility, hunting and call coverage, call pickup, call join, direct transfer, Barge, PLAR, BAT, Cisco auto attendant Console, Group Pickup, etc.

Environment: Codecs G.729A. G.711, G.722, G.722A, G.729, RTP, H.323, SCCP, CUCM 8.5, MGCP, SIP, H.323, SCCP, Cisco 7962, 7975 phones, Wireshark

Confidential, Bloomington, IL

Network Intern

Responsibilities:

• Provided technical support for data and voice network systems using industry-accepted best practice.
• Processed MAC requests for IP Phones, Extensions, Calling Search Space, and Partitions etc.
• Resolve and escalate system alerts issues appropriately from start to completion.
• Helped in setting up remote access upon request
• Extensively used TCP/IP tool like TELNET for remote login to routers and SSH for secure login
• Attended calls to help students, parents, teachers for troubleshooting various issues.
• Setup phones, computers in conference rooms, troubleshot user level phone issues.
• Experiencing working with end users supporting and setting up new accounts with 7900 series VoIP phones for ConfiguringCUC& CUCM.
• Upgrading IOS versions on Cisco Switches and Router through Cisco Network Assistance and TFTP.
• Configuration and maintenance of Call Manager, CUC,IP Phones, IP Communicators, troubleshooting user related issues, proactive and reactive monitoring of VOIP Server and VOIP Gateways.

Environment: F5, switches 45xx, 49xx, routers 7200, cisco phones 7900, windows 2008, Microsoft office 2010, One note

Confidential, Normal, IL

Lab Technician

Responsibilities:

• Configured and troubleshot VLAN's, STP, VTP, Trunking, DNS, DHCP EtherChannels, EIGRP, OSPF, NAT, and static routing in lab environment.
• Helped students in operating various applications like Microsoft Excel, Word, Power-Point, Access, etc.
• Co-ordinate with networking team for configuring and troubleshooting network issues, computer connection issues, and Cisco phone issues.
• Created tickets with regards to problem and issues on connectivity, hardware, or software problem.
• Troubleshot printing problem and tried to resolve the problem.

Environment: Microsoft Office 2008, 2010, Microsoft Access 2010. Windows Server 2008, Windows 2007

Confidential

Network Engineer

Responsibilities:

• Providing documentation by creating VISIO diagrams for the network designing team.
• Managed the installation and configuration of Windows 2003, Windows 2008 servers and SQL server 2005 including post operating system automated installations of supporting software, Microsoft Service Packs, and updates for Windows Server and Microsoft SQL Server.
• Maintained multiple windows 2000 servers including DNS, DHCP, Active Directory, file servers, and web servers.
• Maintained Mail servers for multiple offices
• Provided system administration and helpdesk support to include software and hardware installations, maintenance, upgrades, troubleshooting, user account administration, and support under stringent deadlines in a fast-paced environment.
• Coordinate installation of new equipment including, but not limited to, Cisco routers and switching units.
• Troubleshooting phone unregister issue
• Verify dial-plan in Call manager and Dial-peer in Router
• Management and troubleshooting of Cisco Analog and Digital voice gateways and devices.
• Management and troubleshooting of media servers, media gateways, and IP phone Participate in the troubleshooting activities associated with daily phones operation works.
• Conducted and implement Network and software installations and upgrades
• Implement and support new and existing activities configuration.
• Survivable Remote Site Telephony Configuration SRST, Device Pool

Environment: Microsoft Visio, Windows 2000 Server, 2003, Mircosoft Office 2008, SRST