Complete VOS3000 one-way audio fix guide. Troubleshoot NAT SDP issues, firewall RTP blocking, codec mismatch, SIP ALG interference, and media…
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Master VOS3000 SIP NAT keep alive configuration with HELLO message, period, interval, and quantity settings to prevent NAT timeout and…
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Professional VOS3000 installation service since 2006. One-time setup for all versions including 2.1.8.05 & 2.1.9.07. Complete security hardening, firewall config…