SUMMARY

• 5+ years of VoIP experience in Cisco Unified Communications Manager (CUCM), Cisco Unified Communications Manager Express (CUCME), Cisco Unity Connection (CUC), Cisco Unity Express (CUE), Cisco Unified Contact Center Express (UCCX) and Cisco IM and Presence Server
• Extensive experience in SIP, H323, MGCP protocol configuration.
• Proficient in VoIP codecs (G711, G729), Good knowledge on OSI models, spanning tree and TCP/IP
• Very familiar with Cisco IP phones 7841, 7931, 7940, 7941, 7965, 7975, 8831, 8841, 8941, Cisco IP communicator and Jabber
• Have a good knowledge on VMware technologies like vSphereESXi and vSphere client
• Good knowledge in PRI, SIP Trunking, voice protocols (FXO/FXS), routing protocols (OSPF, EIGRP, RIP)
• Experienced in configuring and troubleshooting dial plans, call routing, call flow and gateways
• Good knowledge on Transport Layer Protocols TCP, UDP and IP Subnetting
• Ability to design and implement networks for Cisco Routers and Switches
• Worked with Cisco Routers 2600, 2800, 2900, 3560, 3600, 3750, 3800, 3945 and Cisco Switches 2800, 2900, 3500, 3560, 3750 and 4500
• Knowledge on STP, RSTP, PVST, VTP, inter VLAN routing and port security
• Dealt with the configuration and troubleshooting issues related to Access Control Lists (ACL), NAT/PAT
• Extensive hands - on experience with complex routed LAN and WAN networks, Cisco routers, switches
• Possess strong communication and interpersonal skills
• Can quickly master and work on new concepts and applications with minimal supervision
• Attention to detail, thoroughness, tenacity and an investigative drive to discover the underlying causes of technical problems

TECHNICAL SKILLS

Cisco Unified Communications Software: Cisco Unified Communications Manager(CUCM- 7.x, 8.x, 9.x, 10.x), Cisco Unity Connection(CUC- 7.x,8.x, 9.x, 10.x), Call Manager Express (CUCME), Cisco Unified Contact Center Express(UCCX) (8.x, 9.x), Cisco Unity Express (CUE), Unified IM and Presence Server(9.x) Cisco Unified Communications Features

Cisco CME: H323, MGCP, SIP gateways SIP trunking, CUBE

Cisco Unified Communications Devices: 79XX, 88XX, 89XX, 99XX, Cisco CTS andCisco IP Communicator, Jabber

Codecs: G.711 and G.729

Protocols: SCCP, SIP, MGCP, H323 and TCP/IP

Routers: Cisco 2600, 2800, 2900, 3560, 3600, 3750, 3800, 3945

Switches: Cisco 2800, 2900, 3500, 3560, 3750, 4500

Other Software: Tera Term, Wireshark, putty, vSphereESXi, vSphere client, packet tracer

Operating systems: Windows 10, 8.1, 8, XP, 2003, 2000, Microsoft Office

PROFESSIONAL EXPERIENCE

Confidential, Frisco, Texas

VoIP Engineer

Responsibilities:

• Configured SIP, H323 and MGCP gateways
• Configured and managed Cisco Unified Communication Manager (CUCM 9.1, 10.5.2), Cisco IM and Presence Server (9.1, 10.5), Cisco Unity connection (9.1, 10.0), Call Manager express (10.0), Unified contact center express (9.0, 10.5.1)
• Configured VoIP devices like 7841, 7931, 7940, 7941, 7965, 7975, 8831, 8841, 8941
• Configuration and troubleshoot of various dial plans with calling search spaces, route patterns, route lists, routr groups, partitions in call manager
• Anaylsis and troubleshooting of high complex network issues
• Configured VoIP dial peers and pots
• Handled SRST, Voice Routing Protocols and Voice Gateways
• Interacting with Clients on day to day basis
• Support cisco CUCM, Unity day to day support. Provide support for call centers connected to the Cisco UCCX call center, IVRs, and call recordings
• Create/Manage special Call Manager features that include Intercom groups, Voicemail Menus, Unity Call/Directory Handlers, and Unity Subscribers
• Integrated CUCM and CUC, CUCM and UCCX, CUCM and IM & Presence and Jabber

Confidential, Knoxville, Tennessee

Voice Engineer

Responsibilities:

• Enabling and configuring various features on the Call manager
• Configured Jabber Voice and Cisco IP Communicator for users on the network
• Created an enterprise dial plan in Cisco Call Manager and Cisco Gateways
• Configured H323, SIP & MGCP Gateways
• Troubleshoot IPT from end to end; including IPT voice quality issues between and within locations
• Configured and installed VOIP devices and IP Phones such as 7940, 7942, 7945, 7961, 7965
• Demonstrated teamwork by working with others on the design and implementation of Voice over IP projects
• Monitored system performance, conduct feasibility studies and made technical decisions regarding system hardware and software upgrades or changes
• Analyzed communication infrastructure to identify network optimization and cost reduction opportunities
• Configured Calling Search Spaces, Route Partitions, Route Patterns, Dial Peers, Route List, Device Pools
• Worked with a team in the deployment of IP telephony setup for Subscriber site with centralized call processing using CUCM (8.6.2, 9.1), UCCX (8.5, 9.0) and CUC (8.6.2, 9.1)

Confidential, Houston, Texas

VoIP Engineer

Responsibilities:

• Configured and managed Call manager(8.6.2), Cisco Unified Communications Manager Express (CUCME 9.1), Cisco Unity Connection (CUC-8.6.2), Cisco Unity Express (CUE 9.0)
• Configured Voicemail functionality for newly added users
• Configured Translation Rules, Dial-Peers, POTS
• Troubleshooting VoIP related issues related to call manager, IP Phones and voice mail
• Configuring and Managing POTs andVoIP Dial-Peers
• Configured and installed VOIP devices and IP Phones such as 7931, 7940, 7941, 7965
• Troubleshoot and managing new and old user accounts at call manager
• Participate in special projects as required
• Ensured proper connection of SIP or H.323 protocols

Confidential

Network Engineer

Responsibilities:

• Configured and managed Call Manager Express (CME) and Cisco Unity Express (CUE)
• Responsible for resolving network problems and assisting users on the network
• Cisco router configuration set up using routing protocols like RIP, EIGRP, and OSPF
• Maintenance of the whole network and troubleshooting the network issues for efficient performance
• Replacement of outdated Cisco switches & routers in existing data centers and installation of new Cisco switches & routers
• Install and monitor Windows Server 2000, 2003 & 2008, Mac Server, and Linux
• Upgrade the network by translating protocols like EIGRP to OSPF
• Switching related tasks included implementing VLANs and configuring ISL trunk on Fast-Ethernet channel between switches
• Configured Cisco routers such as 2600, 2800, 3560, 3600
• Configured Cisco switches such as 2800, 2900, 3500, and 3560
• Monitor, evaluate & report on health of both Wide and Local Area (WAN/LAN) Networks
• Configuring routers and send it to Technical Consultants for new site activations and gave online support at the time of activation
• Switching related tasks included implementing VLANs and configuring ISL trunk on Fast-Ethernet channel between switches

Confidential

Network Engineer

Responsibilities:

• Worked closely with design and architecture teams in capacity planning, QoS, WAN connectivity and LAN design considerations
• Troubleshooting and implementing NAT and DHCP related issues
• Maintenance and Troubleshooting of connectivity problems using Ping, Trace route
• Key contributions include troubleshooting of complex LAN /WAN connectivity issues that includes EIGRP
• Troubleshooting issues and outages on Trunks and Router interfaces extensively
• Provided support for troubleshooting and resolving Customer reported issues
• Creating & applying different types of access-lists
• Participated in 24 x 7 incident & problem support
• Planning and Implementation of Subnetting, VLSM to conserve IP addresses
• Managing STP for loop prevention and VTP for Inter-VLAN Routing
• Performed route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance
• Responsible for implementing, engineering, & level 2 support of existing network technologies / services & integration of new network technologies / services
• VLAN Configurations, troubleshooting and Firewall ACLs and Object-Groups configuration and support