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Portable 4G SIM Bonding Device

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Remote- full time- Posted August 1, 2026- via freelancer.com

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I need a working prototype of a portable SIM-bonding unit that merges multiple 4G LTE links to deliver a single, higher-bandwidth connection and tunnels all traffic through an IPSec VPN. Scope of work... (Budget: ₹12500 - ₹37500 INR, Jobs: Antenna Design, Electronics, Embedded Systems, Firmware Development, Microcontroller, Network Engineering, Network Security, PCB Design and Layout, PCB Layout, Wireless)

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