Expert FreePBX/Asterisk Engineer Needed to Fix No Audio in Sangoma Talk

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I am looking for a highly experienced FreePBX and Asterisk VoIP engineer to diagnose and permanently resolve a complex no-audio issue affecting our Sangoma Talk mobile users. We have already spent considerable time troubleshooting this problem, including extensive configuration changes, packet captures, and network analysis, but the issue remains unresolved. Our System: * FreePBX 17 / Asterisk 22 * Debian 12 VPS * Sangoma Talk on iOS and Android * SIP over TLS (port 5061) * SDES-SRTP for…

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