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What does "PBX Delivers audio" EXACTLY do...? | 3CX …
https://www.3cx.com/community/threads/what-does-pbx-delivers-audio-exactly-do.57439/
So according to your answer, "PBX delivers Audio" should be set (for security reasons) to the sip trunk (and has no impact to the used codec). So.. in our case, the G.722 is not supported by the sip trunk provider (although, he claims it is) or some configuration is wrong or not active... G.722 is set as first codec in the trunk settings...
PBX delivers audio when using an SBC | 3CX Forums
https://www.3cx.com/community/threads/pbx-delivers-audio-when-using-an-sbc.51448/
Using "PBX delivers audio" simple routes all voice packets back through the PBX, for extension to extension calls. Not the most bandwidth friendly, not to mention an additional strain on the PBX processor, if that is a concern.
SIP Trunk > PBX Delivers Audio enabled or disabled? | …
https://www.3cx.com/community/threads/sip-trunk-pbx-delivers-audio-enabled-or-disabled.63809/
Is it recommended to leave PBX Delivers Audio (SIP Trunks > Options > Advanced) enabled or disabled? 3cxnub Customer Joined Nov 1, 2014 Messages 266 Reaction score 42 Mar 2, 2019 #2 https://www.3cx.com/community/threads/pbx-delivers-audio-help.21018/ -Commercial grade support should NOT be expected from someone with nub in their name.
Using the "PBX Delivers Audio" option : 3CX - reddit
https://www.reddit.com/r/3CX/comments/6aw2rj/using_the_pbx_delivers_audio_option/
PBX delivers audio is exactly what it means. (Pinns the audio to the PBX) So each call is broken out between SIP signaling and the RTP audio stream. In a lot of scenarios, it's desirable to have each handset directly to one another. However, it's been my experience that unless everyone is NOT behind nat, PBX delivers audio is a better experience.
3CX Knowledge Base - Calls have one-way audio issues or no ...
https://help.3cx.com/kb/en-us/50-calling/135-calls-have-one-way-audio-issues-or-no-audio-what-can-i-do
Each extension with a remote STUN phone has the option “PBX Delivers Audio” ticked, On the remote site, each phone should have a static local IP address. Then in the remote site router, each extension port defined above should be mapped to the hardphone IP address associated. Phones should be rebooted/reprovisioned to take new settings account.
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