One-way VoIP audio
Trace the missing direction from advertised media address to receiving endpoint.
Asterisk 22 LTS · FreePBX 17 / Debian 12 checksOne search across the technical library, device research, videos, providers and tools.
Trace the missing direction from advertised media address to receiving endpoint.
Asterisk 22 LTS · FreePBX 17 / Debian 12 checksCompare the exact working and failing call phase, SDP direction and RTP path across hold, resume, transfer or idle time before changing NAT, direct-media or timeout controls.
RFC 3264 offer/answer behavior, current Asterisk res_pjsip media controls and Wireshark RTP analysis documentation reviewed October 5, 2026; no PBX, endpoint, trunk, firewall, packet stream, media transition or call testedTrace the final SDP and observed RTP through both FreePBX call legs before changing NAT, direct media, symmetric RTP, Strict RTP, codecs or security.
Sangoma PBX GUI Asterisk SIP Settings and legacy FreePBX 12 SIP-audio guidance plus current Asterisk res_pjsip NAT, configuration, troubleshooting, CHANNEL and bounded-debug references reviewed October 6, 2026; the legacy Sangoma page is chan_sip-era symptom and settings context, not a FreePBX 17 PJSIP configuration recipe, and no PBX, firewall, endpoint, trunk, packet flow or live call was inspected or testedSeparate application login, endpoint registration, call signaling, selected devices, WebRTC reachability and two-way media before changing credentials or network policy.
Current VoIPstudio download, Desktop Softphone, user-introduction, endpoint-administration and network-troubleshooting documentation reviewed October 16, 2026; the public download surface lists Windows, Windows MSI, macOS Intel, macOS Silicon and Linux paths but does not publish one common desktop build number, and no package, workstation, operating-system permission, user account, endpoint record, VPN, firewall, WebRTC test, SIP Test, MTR result, packet, protected session, media stream or live call was inspected or testedUse symptoms and evidence to isolate registration, routing, media and device faults.
Foundational