Network/VoIP Expert: Fix VPN, VPS, Minor WireGuard Tweaks & Yeastar S20 (Read Rules)

*** STRICT RULES - READ BEFORE BIDDING *** 1. DO NOT BID if you do not have direct, hands-on experience with ALL of these specific devices: - Cudy P2 5G Router - DrayTek Vigor 2915 Router - Yeastar S20 PBX I will NOT explain how these devices work or provide any tutorials... (Budget: $30 - $250 USD, Jobs: Asterisk PBX, Docker, Linux, Network Administration, Network Engineering, Network Security, SIP, System Admin, VoIP, VPN)