We use cookies for the best user experience on our website including to personalize content offerings to provide social media features and to analyze traffic By clicking Accept All Cookies you agree to our use of cookies You can also manage your cookies by clicking on the Cookie Preferences and selecting the categories you would like to accept For more information on how we use cookies please visit our and Modify Cookie Preferences Reject All Cookies Accept All Cookies Tower Lead - Avaya Telecommunications India Tower Lead - Avaya Telecommunications Lucknow Uttar Pradesh Job Summary 5 to 10 years of years of Telecom Voice and services experience Must have expert level knowledge and experience managing all TDM Domestic International VoIP Voice switching systems Very positive knowledge and experience of all Voice International switches like DMS100 DMS250 DMS500 CS2K PVG DEX600 SONUS 5ESS class 3 and 5 C20 G9 Siemens EWSD Ericsson AXE Good knowledge of Local POTS lines ISDN PRI Metro Private line Frame Relay Channel Banks Multi-Point and Ringdown circuits Knowledge of 911 services knowledge of all order entry and provisioning systems Expert knowledge of technologies such as OSI model layer 1-7 troubleshooting SIP SS7 IP routing protocols ISDN PRI Local and LD voice switch network including DS-0 DS-1 and DS-3 Bandwidth circuits A very good understanding of call flow routing and translations over carrier international networks International Toll Free Advanced IP Toll Free Routing ATF Digital Voice Wireless Conferencing International IDDD and International Toll Free as well as other Repair Center products Experience troubleshooting issues include but not limited to poor call quality call completion failures call routing feature interoperability and connectivity issues across CPE Sonus SCIP VoIP Public Private International and PSTN networks Strong technical background in the TDM and VoIP voice and data technologies Preferred areas of configuration and troubleshooting technical proficiency include OSI model layer 1-7 troubleshooting SIP SS7 IP routing protocols ISDN Frame Relay MPLS ATM Local and LD voice switch network including DS-0 DS-1 and DS-3 Bandwidth circuits Functional knowledge of specialized diagnostic tools packet capture protocol analysis devices SIP protocol firewalls session border Key Responsibilities 5 to 10 years of Voice and or VoIP technical support experience Deep understanding on how different Voice solutions are integrated Have good understanding on products like Retail VoIP Enhanced Toll-free services XO VoIP Webex Calling VoIP MACD Understand how Cisco Web-ex Global IP Connect Genesys Contact center and VZ Global conferencing interact with VoIP IP Toll Free PSTN and Verizon PIP cloud networks works Have good understanding and knowledge on IP Trunking IP Integrated Access IPTF Term TDM Voice products SBC Understanding on MPLS deployments connecting to PSTN and understanding on major components like PIP IDA SBC BSAS BSNS NS RS Sonus DSCIP CS2K C20 G9 OCCAS Sonus NBS gateway Good understanding on VoIP call flows like Inbound Call path Inbound Call path with SIP ladder Registered User Inbound Outbound Call Flow IP Integrated Access IPIA Key - Outbound Inbound Call flow IP Trunking Enterprise Trunk inbound Outbound Call flow Basic IP Toll Free Call Flow IPIVR Toll Free Call Flow Basic Inbound local Origination etc Ability to troubleshoot complex issues Strong communication skills and ability to interact with different types of stakeholders Knowledge of network standard analysers such as Wireshark and SIP ladder diagrams Ability to prioritize and multi-task independently Skill Requirements You will be responsible for end-to-end trouble isolation and repair for customers voice products experiencing complex issues across CPE LAN WAN and PSTN networks Troubleshoot issues related to quality completion routing interoperability and connectivity across local long distance and IP networks Troubleshoot different layers in the OSI model Understand and leverage network topologies and workflows Work with SS7 signalling and strong foundations of SIP RTP messaging and call flows Engage with general router functionality such as router configurations troubleshooting commands etc Keep up-to-date with technology changes and continually expand knowledge and skill sets Other Requirements 1 Optional But Valuable Certifications Avaya Certified Implementation Specialist Acis Avaya Certified Support Specialist Acss Information at a Glance Why HCLTech At HCLTech you ll supercharge your potential You ll find your career And you ll find your spark All at a place that knows that helping its customers stay on top starts by putting its people first HCLTech is a global technology company home to more than 226 300 people across 60 countries delivering industry-leading capabilities centered around digital engineering cloud and AI powered by a broad portfolio of technology services and products We work with clients across all major verticals providing industry solutions for Financial Services Manufacturing Life Sciences and Healthcare Technology and Services Telecom and Media Retail and CPG and Public Services Consolidated revenues as of 12 months ending December 2025 totaled 14 5 billion 23 Benefits At HCLTech we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being When you sign up for a career with us you gain access to https rmkcdn successfactors com 147eb21f a701dca9-f32d-4fc9-9447-6 svg Industry-benchmarked compensation https rmkcdn successfactors com 147eb21f b0c54381-ddcc-4a33-9b35-9 svg Best-in-class healthcare benefits https rmkcdn successfactors com 147eb21f b73027be-7aae-4d36-a090-4 svg Personal time off https rmkcdn successfactors com 147eb21f d5b4fdfd-2e99-4e26-9878-9 svg Maternity and paternity benefits https rmkcdn successfactors com 147eb21f 3d42b0fc-4652-435a-9ece-c svg Access to skills higher education programs resources https rmkcdn successfactors com 147eb21f aeddeaf2-9e25-4584-ad11-d svg Discounts on products and services via Benefit Box https rmkcdn successfactors com 147eb21f a9609a3b-2700-4b3c-9d90-a svg Participate in CSR programs and live life with a purpose https rmkcdn successfactors com 147eb21f c6e33851-710f-4634-bd69-f svg Opportunities to grow and advance your career Note The benefits listed above vary depending on the nature of your employment and the country where you work Some benefits may be available in some countries but not in all Copyright 2025 HCL Technologies Limited x Cookie Consent Manager When you visit any website it may store or retrieve information on your browser mostly in the form of cookies Because we respect your right to privacy you can choose not to allow some types of cookies However blocking some types of cookies may impact your experience of the site and the services we are able to offer Required Cookies These cookies are required to use this 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📌 Tower Lead - Avaya (telecommunications) (India)
🏢 HCLTech
📍 India