Suresh Varatharajan
UCC Solutions Architect
Chennai
Summary
- A result oriented professional with more than 17+ years overall IT industry experience with 11+ years in Unified communication and Collaboration as providing solution Advisory,architecture, proposition & leading Center of Excellence(COE) team for Service Delivery supporting worldwide customers across Americas, Europe, and APAC region. Worked on various UC Platforms (MS teams ,Zoom , Cisco), AV products (Poly/HP ,Crestron ,Neat,Dten, Logitech), SBC ( Ribbon ,Oracle, Audio-codes)
- A technically astute and competent professional offering the relevant experience of 11+ years in UCC, 1.2 years in Incident management & 4.10 years in Technical Support /End user Computing.
- Currently spearheading with HCL Technologies Ltd as "Senior Consultant" as Microsoft UCC Solutions Architect.
Overview
2025
2025
years of professional experience
4007
4007
years of post-secondary education
19
19
Certifications
Work History
Senior Consultant
HCL Technologies Ltd
1 2021 - Current
- Provide Advisory Services to HCL customers Globally, on UC, UCaaS, Meeting Rooms, and outsourcing IT services (including Automation and Monitoring solutions).
- Leading 8 Transformations Projects in UCC with business of more than ~$5M+ for FY 2023-24.
- Solutioning cloud & on-premise infrastructure around Microsoft Teams & M365
- Preparation of SOW's
- Worked in multiple projects on deployment of MS teams
- Creation of HLD/LLD documents
- Migrated 8k users from one tenant to another tenant on MS Teams using Direct routing in Americas region for existing EN HCL Life science customer
- Migrated 30k users across 8 Countries from SFB-OnPrem to Teams along with 900 Crestron Desk phones & 150 Crestron MTR devices.
- Migrated 157k users across US & EMEA region from Zoom to Teams along with 1200 Poly VVX phones as SIP endpoints,550 Auto Receptions and 3300 Neat & poly MTR devices .
- As Part of HCL UCC incubation team evaluate vendor Solutions, create Joint Value proposition and lead the vendor partnership engagement lifecycle to ideate new Solutions, strategy in UCaas, MRaas, Daas & CPaas
Principal Software Specialist
Inspiredge IT Solutions Pvt Ltd
10.2019 - 01.2021
- Company Overview: USA based UCC professional & Managed service provider
- Design and Deployment of Microsoft Unified Communication Solution
- Expertise in migration of On-Prem SFB to SFB Online /Teams
- Technical expertise in resolving issues on Frontend, Edge, Mediation servers and Federation
- Assigning O365 licensing, Ex, Microsoft Phone System and Calling plans, to end users
- Creating call queues/Auto Attendant in Microsoft SFB and Teams
- Troubleshooting SFB and Teams client issues via logging tools
- VoIP, SIP and SIP trunking (Centralized, Local)
- Troubleshooting call quality issues for end users leveraging Microsoft Call Quality Dashboard, local logging for endpoints
- Expertise in using troubleshooting tools like Wireshark, Network Analyser, Fiddler, Snooper or any Realtime traffic capture tools
- Troubleshoot Polycom and Yealink end point configuration issues CAP licensing, Room, System accounts etc
- Experience in deploying, configuring and troubleshooting Lync/Skype for Business Enterprise Voice, Dial Plan, Meetings/Conferencing, Desk Phones, Routing policies as well as integration with Exchange/Office 365 Unified Messaging, MS Teams and Teams Direct Routing
- Expertise on Deployment of Sonus SBC on Microsoft Teams Direct Routing
- Strong Expertise in Sonus SBC Deployment, Integration with Multiple Platforms (SFB 2015, Teams Direct Routing, Cisco IPT, Tenor, DCET servers, Right Fax, FXO/FXS)
- Strong Expertise in Sonus SBC in Call Routing Table, transformation Table for Inbound/ outbound call routing
- Expertise is managing the Sonus SBC with LX log analysis and alarms
- Expertise in number porting on SBC from Legacy E1/T1/ to Global SIP Trunks
- Experience in Managing Audio Codes Mediant 1000,2600 SBC & MP 1288, MP 124 Analog Gateway
- Expertise in release management upgrading to new Firmware releases on Sonus SBC & Audio Codes SBC
- Experience in release management upgrading to new Cumulative update releases on Lync 2013 & Skype for Business Server 2015 environment
- USA based UCC professional & Managed service provider
Network Administrator (VOIP - Implementation)
TATA CONSULTANCY SERVICES LTD.
05.2018 - 10.2019
- Migration and Integration of legacy Voice & Video infrastructure with Sonus SBC & Skype for Business 2015 Enterprise Voice Solution
- Migrated number range spread across 3 CUCM Clusters currently terminating using SIP Trunk on Cisco CUBE Gateway
- Integration of Cisco Unified Call Manager with Skype for Business 2015 server
- Integrated Sonus SBC Gateway with Cisco Unified Call Manager, Skype for Business 2015 Server, RightFax using SIP Trunks
- Integration of Polycom A/V (DMA, RPRM, RMX, RPAD) with Skype for Business 2015 server
- Migrated existing users using DID numbers on Cisco IPTelephony towards Skype for Business 2015 Enterprise Voice
- Created Response Group to use Auto Attendant feature
- Cutover Project Management
- Coordinating Migration activities with all stakeholders
- Implementation & Execution as per Migration plan
- Provided presentations and demonstrations of Client solution
- Provided technical documentation
Network Administrator
TATA CONSULTANCY SERVICES LTD.
10.2012 - 05.2018
- Managing CUCM (9.x 10.x 11.x), Cisco Call Manager Express, Cisco Unity connection (CUC), CUE
- Maintenance of Cisco IP Phones, Analog Phones and Polycom Phones, ATA 187, ATA 190, VG224, CIPC
- Configuration of IP phones, creating Agents in UCCX and voicemail account of users in Unity
- Managing the Device Pool, Partitions, Calling Search Space, gateway configuration viz
- MGCP, H.323
- Managing Analog ports, Digital ports, Dial Peers
- Managing the Hunt Group and Hunt Pilot in Cisco
- Managing the route group and adding phones through BAT
- Troubleshooting on protocol MGCP, H323, SIP, ICT (inter cluster trunk) and Gateways
Incident Management
TATA CONSULTANCY SERVICES LTD.
07.2011 - 09.2012
- Act as a First point of contact & provide End-user support to Business users through Voice
- Manage & troubleshoot on Infrastructure related issue and engage right team to get the issue resolved on timely manner
- Provide support to Mobile apps, software, hardware and network related issues
- Provide end-user support by Pushing Zimmer Apps on IPAD through Salesforce portal
- Raise severity of alarms as per defined guide lines or its overall impact on business
- Provide a prompt recovery of the business within the specified Service Level Agreement
- Includes resolution of major incident (outage) by involving the support groups in timely manner
- Act as an interface towards other technicians, customer technical staff and other groups within the organization
Technical Support Expert (L1& L2)
Dell International Services India Private Ltd
05.2008 - 05.2011
- Working at client side giving technical support for its Company own products desktop, Laptop and Inkjet printers
- Troubleshooting DESKTOP, LAPTOP, (DELL) computers and PRINTER & other peripherals with all software and hardware related issues
- Installing and Configuring Windows Operating Systems
- Troubleshooting and configuring Network and System problems
- Troubleshooting and configuring RAID on Desktop and laptops
- Troubleshooting all third party software's as well as Microsoft Applications & MS Office
- Configuring and Troubleshooting Outlook Express & MS Outlook Clients
- Troubleshooting Wireless and networking
- Installing & Troubleshooting of D-link, Linksys, Netgear and Dell Wireless router
- Trained on handling Microsoft windows xp, vista and windows 7 problems
- Handling Technical support queries about DELL laptops and desktops from US customer's over the phone
- Handling issues like Blue screen errors, Motherboard issues, hard drive errors, system related issues
Senior Technical Support Expert
Wipro Ltd.
07.2006 - 05.2008
- Company Overview: DELL INTERNATIONAL SERVICES INDIA PRIVATE LTD
- Installing and Configuring Windows Operating Systems
- Worked for DELL client and Providing Technical support for only DESKTOP COMPUTERS to consumer segment over the phone for USA Customers
- Troubleshooting Software, Virus infections and Internet problems
- Troubleshooting and configuring Network and System problems
- Troubleshooting and configuring RAID on Desktop
- Troubleshooting all third-party software's as well as Microsoft Applications & MS Office
- Configuring and Troubleshooting Outlook Express & MS Outlook Clients
- Troubleshooting Wireless and networking
- Trained on handling Microsoft windows xp, vista problems
- Handling issues like Blue screen errors, Motherboard issues, hard drive errors, system related issues
- DELL INTERNATIONAL SERVICES INDIA PRIVATE LTD
Education
BACHELOR OF ENGINEERING - Computer Science
Jaya Engineering College
Chennai, India 04.2001 - 01.2006
Central Board of Secondary Education - Science
Central Board of Secondary Education
New Delhi, India03-2001
SSC - Others
Central Board of Secondary Education
New Delhi, India03-1999
Skills
Solution Advisory
Solution Design
Technical Consultation & Architecture
Service Delivery
Value Proposition Development
Partner Relationship Management
Channel Sales & Strategic Alliances
Certification
Cisco Certified Network Associate (CCNA) - DATA
Timeline
Principal Software Specialist
Inspiredge IT Solutions Pvt Ltd
10.2019 - 01.2021
Network Administrator (VOIP - Implementation)
TATA CONSULTANCY SERVICES LTD.
05.2018 - 10.2019
Network Administrator
TATA CONSULTANCY SERVICES LTD.
10.2012 - 05.2018
Incident Management
TATA CONSULTANCY SERVICES LTD.
07.2011 - 09.2012
Technical Support Expert (L1& L2)
Dell International Services India Private Ltd
05.2008 - 05.2011
Senior Technical Support Expert
Wipro Ltd.
07.2006 - 05.2008
BACHELOR OF ENGINEERING - Computer Science
Jaya Engineering College
04.2001 - 01.2006
Cisco Certified Network Associate (CCNA) - DATA
Cisco Certified Network Associate - Voice (CCNA-Voice)
ITIL V3 Foundation Certification
Implementing Cisco Collaboration Devices - CCNA Collaboration
Deploying Enterprise Voice with Skype for Business 2015
Core Solutions of Microsoft Skype for Business 2015
Managing Microsoft Teams
Microsoft Teams Voice Engineer
Ribbon - SBCE11 - SBC Edge Support and Implementation
Ribbon SBC SWe Lite and Teams Direct Routing Implementation
Crestron Core Certification Track CTI-CCT
Crestron Flex Sales Track
VOICE SALES EXPERT (VOICESALES-XPT) - Poly
VIDEO SALES EXPERT (VIDEOSALES-XPT) - Poly
Sales Solutions Expert (SALES-XPT) - Poly
ZCSA - Customer Success Management - Zoom
ZSA - Zoom Foundations - Zoom
ZSA - Zoom Phone - Zoom
ZSA - Zoom Rooms - Zoom
Senior Consultant
HCL Technologies Ltd
1 2021 - Current
Central Board of Secondary Education - Science
Central Board of Secondary Education
SSC - Others
Central Board of Secondary Education
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