Ranjeet Kumar
SIP || VOIP || IMS || Volte || Protocol analysis || IMS Deployment || End-to-end testing || Modem Validation || Log analysis || LTE || 5G || VONR || VOWIFI || Srvcc || ELT || Wireshark || Linux || Wireless testing
- Role
- Technical Lead at L&T Technology Services
- Location
- Siwan, IN
- LinkedIn followers
- 500 followers
About Ranjeet Kumar
Having 7 Years of experience in IMS || SIP Deployment and testing and 9 years overall in telecom domain. MRF Designing, Deployment and Integration. Testing and and Kubernets.(RFC 3261), Diameter Protocol (RFC 4740). Also sound knowledge of LTE architecture.
Experience
Technical Lead
Dec 2022 — Present · Noida, IN
Modem testing, Log analysis, MCS(Modem customer support) for Mediatech, Modem issue handling with debugging, troubleshooting and feature support.• Handling SIP/IMS-related issues and providing solutions with troubleshooting and new Feature support like VoWiFi, Vodata, E-call, and DSDA/DSDS.• Debugging issues like Field-test, Lab-test, and GCF/PTCRB-test.• Analyzing and fixing issues like initial Registration VoLTE/VoNR/VoWiFi/ViWiFi calls, CSFB, SRVCC calls, MMS, SMS, USSD, and Emergency calls.• Troubleshooting of Supplementary services like Call Conference, Call hold/Un-hold, Call Forwarding, and Call transfer.•Good exposure to protocols like- SIP, SDP, RTP, TCP/IP, UDP, IKE, ISAKMP, HTTP, and Diameter. • Analyze OTA messages like LTE attach procedure, EPS default and dedicated bearer, 5G registration procedure, PDN and PDU session creation, etc. • Basic understanding of NAS and RRC protocol.
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