PROFESSIONAL SUMMARY:

• CCIE certified with extensive years of VoIP experience in VoIP and Cisco unified communication products such as Cisco Unified Communications Manager (CUCM), Cisco Unity Connection (CUC), Cisco Unity Express (CUE), Cisco Unified Contact Center Enterprise (UCCE) and Cisco IM and Presence Server.
• Have a good hands on call flow design using ICM scripting.
• SME on Cisco contact center and collaboration products.
• Knowledge of various voice protocols like MGCP, SIP, SCCP.
• Designed, Planned and Implemented migration from Microsoft Live Communications Server to Office Communications Server (OCS).
• Administers and troubleshoots a variety of communication platforms, including VOIP, PSTN and Video Conferencing.
• Supported the enterprise UC vision deliverables by implementing viable technologies, VoIP issues and mitigation strategies, develop the strategy for defining, deploying, and maintaining voice services with regards to the Unified communication architecture.
• Design, Plan, estimate, deliver & execute different UCCE releases.
• Deploy, install, and configure UCCE components.
• Configure UCCE routing scripts & exercise end to end call flows.
• Play a pivotal role in scaling up some of UCCE limits.
• Assist customers to build UCCE environments on newer releases.
• Simulate customer environments, reproduce customer issues, fix & test engineering specials.
• Execute performance and regression testing, for various ICM features.
• Work with architects in designing UCCE solutions for different customers and participate in customer demos
• Deployment of Cisco Hosted Collaboration for Contact Center enterprise including Cisco CVP, Cisco Finesse, and Cisco Unified Intelligent Center (CUIC) .
• Extensive knowledge on cisco unified communication dial plans, calling search spaces, partitions, translations, templates, call handler, UCCX scripting, bulk imports, unified messaging, domains configuration in prime etc.
• Technical Experience includes design and implementation of LAN/WAN routing and switching, large wireless deployments, Cisco ACI, OpenStack, virtualization (vmWare,vCenter,ESXi), Unified Communications and Data Center connectivity (OTV, LISP,design).

TECHNICAL SKILLS:

Cisco Routers: 1800, 2500, 2610, 2800, 3600, 3845, 7200, ASR 1000 series.

Unified Contact Center Application: UCCE 7.x, UCCE 8.x, UCCE 9.x, UCCE 11x, CCMP

Cisco Switches: 4500, 6500 series and Nexus Switches.

Switching Protocols: VTP, STP, RSTP, MST, VLANs, ISL, 802.1q, Ether Channel, PAgP and LACP

RIP, IGRP, EIGRP, OSPF, BGP, IS: IS, HSRP, VRRP, and GLBP

Cisco Unified Communication Application: CUCM 4.x, CUCM 7.x, CUCM 9.x, CUCM 10.x, Cisco Unity 9x, Cisco Unified Presence 9x., Cisco Prime.

Cisco Unified Voice Portal: CVP 3.x, CVP 4.x, CVP 7.x, CVP8.x, CVP 9.x, CVP 11x

WAN Technologies: Frame Relay, lease Line VPN (L2F, PPTP, L2TP, GRE), ISDN, PPPATM, MPLS(LDP/TDP),IPv6,SONET and HDLC

LAN Technologies: Workgroup, Domain, HSRP, DHCP, Static, VLAN, STP, VTP, Ether Channel, Trunks, PVST, RSTP

Voice gateway/Routers: AS5300XM, AS5400XM,28XX/29XX/38XX/39XX series

IP Telephony: VOIP, T1/T3, ISDN, PRI, Cisco Unified Call Manager

Load balancer: CSS, ACE, CUPS, CUSP

Network Security: Cisco ASA Firewall, Layer 2 Security, VPN,WAF, IPSec, ACL, load balancing, NAT/PAT, Filtering, Checkpoint, Fortinet, McAfee Firewall Enterprise, Palo Alto,Firewall,CITRIX Net Scaler,HTTP proxy, Bluecoat proxy, Socks Proxy, PAM.

Various Feature/services: TCP/IP, LAN, WAN, IP Subnetting, VLSM, VLAN, Inter - VLAN Routing, Frame-Relay,PPP,FTP,TFTP,VOIP(SIP,H.23,MGCP),L2VPN, HDLC, DHCP,DNS,ICMP,UDP,SNMP.

Technical Documentation: LLD, HLD, SOW, NRFU, SOP.

Documentation: MS Word, Excel, Project, PowerPoint, Outlook, Visio

Virtualization: VMWare WorkStation, VMware ESX/ESXi

Simulators: Packet tracer, GNS3

PROFESSIONAL EXPERIENCE:

Confidential, Los Angeles, CA

VOIP Engineer

Responsibilities:

• Installing, configuring, maintaining and troubleshooting of the company network.
• Duties included monitoring network performance using various network tools to ensure the availability, integrity and confidentiality of application and equipment and to provide support for Cisco network.
• Experience troubleshooting VOIP networks running on protocols like SCCP, MGCP, SIP.
• Worked on Configuring Partitions & Calling Search Spaces to increase the efficiency of the system by blocking unauthorised employees from restricted access numbers.
• Created VPLS connections between H and NE40's depending on customer services such as (Internet, VoIP, L2vpn, L3vpn, Ibgp and Ebgp)
• Designed, Installed, Configured, Maintained and troubleshoot VOIP (SIP) servers, infrastructure and applications.
• Manage/maintain routing infrastructure - Cisco ISRs ( ), Cisco 12000 GSR, and Cisco ASR 1000 and 9000-series routers; DMVPN, BGP peering with ISPs
• Configured and Deployed VOIP servers, hardware, applications and monitoring tools.
• Monitored customer network (Internet, VoIP, L2vpn, L3vpn, IBGP and EBGP).
• Experience working with kamailio SIP devices like routers, switches & servers.
• Developed & deployed various cloud services like data storage services using SDN.
• Worked on various cloud security & SDN security applications to make changes to security parameters according to the client requirements.
• Implementation of VOIP IP Phones at branches and upgrading old branch Avaya analog phones with Cisco IP Phones, configuration ports to support VOIP, IP Helpers, Voice VLAN, &QoS.
• Configured and managed Cisco Unified Communication Manager (CUCM 10.5.2), Cisco Unified Contact Center (UCCX 10.5) and Unity Connection (CUC 10.5), Cisco IM & Presence - Jabber, Cisco Finesse, Cisco Prime collaboration provisioning 11.0, 11.5(Medium Template) & 11.6 (Large Template), Cisco Prime Assurance, Cisco Telepresence (SX10, SX20, SX80, MX300, MX800), Cisco Desktop Collaboration Experience (DX650, DX 70), VCS Expressway-C & Expressway-E, Mobile remote access, B2B and Lync integration using VCS
• Created Subscriber services, skill sets, prompts for UCCX deployment
• Integrated Cisco unity connection with CUCM and performed various tasks like unified messaging, creating VM templates, System call handlers (Auto Attendant) etc.
• Configured and Managed Cisco Unified Border Element (CUBE). Created various dial peers based on the site restrictions and client requirements like blocking the numbers from the external view.Provide direct day to day support for various technologies such as: WAN technologies (MPLS, Metro Ethernet, etc.), Data Center infrastructure (VLANs, trunks, teaming, L2 & L3, etc.), Campus switching, Load Balancer and Virtualization, Routing protocol support (BGP, IEGRP & OSPF), VPN technology support, VoIP communications and infrastructure, enterprise wireless, RADIUS services, enterprise DNS / DHCP and other various enterprise technologies and services.
• Familiar with managing Cisco Unified Call Managers, UNITY voicemail systems, H323 and SIP voice gateway, LAN/WAN and System Integration.
• Created Voice Mail boxes, call handlers, create and reset passwords.
• Created dedicated VLANs for Voice and Data with QoS for Prioritizing VOICE and DATA.
• Created dedicated VLANs for Voice and Data.
• Designed, operations, management and evaluation of complex voice over IP systems for lab environment.
• Troubleshoot IPT from end to end; including IPT voice quality issues between and within locations.
• Created Voice Mail boxes, call handlers, create and reset passwords.
• Configured and Monitored Avaya VOIP networks using Avaya IP office 500 and ComXchange FXS gateways.

Confidential, Cerritos, CA

VOIP Engineer

Responsibilities:

• Expert working knowledge including the ability to setup, configure, upgrade, manage and troubleshoot Juniper and Cisco routers, switches, VPN concentrators, firewalls, 802.11 wireless access points and load balancers.
• Worked on configuration, troubleshooting & maintenance of various Juniper devices (SRX series routers, EX series switches, etc.).
• Served as an escalation point for Cisco UCCE issues for multiple customers.
• Created a Common upgrade planning document for UCCE 7.5 to UCCE 8.5.3
• Provided pre-and post-engineering consulting to CUCM and UCCE upgrades, which involved developing procedural documentation, software bug scrub analysis, and validation in testing environment.
• Implementation of Cisco network equipment, Cisco 3850, Cisco ASA, Cisco PBX, Cisco ASR
• Providing administration of Call Center Express (UCCX) clusters.
• Installed and configured all UCCE components such as routers, loggers, PGs, HDS, AW, Webview, CUIC, MRPG, Dialer, CAD, and CTIOS
• Redesigned the UCCE scripting standards so that call types were properly set, and other scripting variables were consistent across all scripts for simplified reporting
• Trouble shooting VoIP issues on gateways, CUCM, Cisco unity and Unity connection. Gathering and analyzing CUCM traces, ISDN debugs with Cisco routers and related VoIP protocols-SIP, H.323, MGCP.
• Handled minor as well as major changes in Call manager, UNITY server, UNITY connection, CME, UCCX, Cisco Ops manager.
• Responsibilities include web administration, adding, and removing accounts including e-mail, server performance and maintenance, installation and configuration of Cisco 700, Cisco 1600, Cisco 2600, Cisco 3600, series Router and Cisco 2900, Cisco 3500 series switches and some Juniper routers.
• Setting up VLANs and configuring inter-VLAN, Trunking, STP, PVST, RSTP, port aggregation & link negotiation on Ethernet channel between switches.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF and BGP.
• Knowledge of Installation and Configuration of T1, Frame Relay, and ISDN, ACE Authentication, Radius reporting, and IP Services.
• Knowledge in Implementing and configuring F5 BIG IP LTM 6400 Load Balancers.
• Provides technical support to clients, management, security administrators and network operations. Provides implementation support for risk assessment and data security procedures and products.
• Designed and implemented security systems including various Cisco IOS ACLs, Context-Based Access Control, PIX Firewall (PIX 506, 515), Network Intrusion Detection Systems, AAA Cisco Secure Access Control Server (Radius/TACACS+) and Linux syslog servers. Planned, configured and operated IPsec VPNs.
• Worked on ASA 5505, 5510 models and migration from PIX to ASA.
• Worked on Cisco ACE load balancer for minimizing traffic congestion.
• Designed, built, and implemented Checkpoint Firewall-1 VSX, with Provider-1 running on a Crossbeam X45 for evaluation by Chick-Fil-A.
• Participated in a massive technical upgrade to enhance wireless access points and internet capabilities.
• Troubleshoot network problems using Packet Analysis tools like Ethereal.
• Monitored wireless access point (WAP), Controllers, switches and routers making sure controllers are online.
• Worked on various VOIP protocols like MGCP, SCCP, H323 & SIP.
• Configured and Deployed VOIP servers, hardware, applications and monitoring tools.
• Monitored customer network (Internet, VoIP, L2vpn, L3vpn, IBGP and EBGP).
• Managed Cisco Unified Call Managers, UNITY voicemail systems, H323 and SIP voice gateway, LAN/WAN and System Integration along with troubleshooting any issues arising after deployment.

Confidential

JR.VOIP Engineer

Responsibilities:

• Finance vertical Customer’s network.
• Coordinated with order managers for validation of order/service detail
• Settings of the networking devices (Cisco Router, switches) co-coordinating with the system/Network administrator during any major changes and implementation.
• Experience working with CUCM platform.
• Managed the CSS & worked on maintaining the VOIP network.
• Used various protocols like SIP, MGCP & SCCP to implement the voice network.
• Was part of a team of network engineers who worked on migrating services from data storage to cloud storage using SDN applications.
• Routing protocols OSPF, RIP & BGP
• Troubleshot Cisco 3650, 2900 series switches.
• Configured, installed, & managed DHCP, DNS servers.
• Network connectivity troubleshooting, ping, tracert, telnet
• Responsible for communication protocols, configuration, integration & security.
• Investigating, diagnosing and resolve all network problems.
• Maintaining pre-packaged software applications on the LAN.
• Configuration of New & Existing Network devices, includes Cisco Routers, Switches.
• Performed Domain Admin tasks including maintaining DNS and DHCP.
• Managing the complete end to end site solutions.
• Communicating and negotiating with users, specialists, other staff and suppliers.
• Working with multiple technical platforms, i.e. mainframe, two-tiered client-servers and three-tiered client-servers.