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No Audio Between Remote Extensions | 3CX Forums
https://www.3cx.com/community/threads/no-audio-between-remote-extensions.40955/#:~:text=One%20way%20audio%20issues%20seem%20to%20be%20quite,option%20in%203CX%20%28per%20extension%29%2C%20PBX%20delivers%20audio.
No Audio Between Remote Extensions | 3CX Forums
https://www.3cx.com/community/threads/no-audio-between-remote-extensions.40955/
You may wish to consider using the 3CX SBC. One way audio issues seem to be quite common when a number of remote extensions are run behind the same router with no SBC used. It can also depend on your router. In the mean time (as suggested) try checking the option in 3CX (per extension), PBX delivers audio.
No Audio on remote extension | 3CX Forums
https://www.3cx.com/community/threads/no-audio-on-remote-extension.18351/
Good evening, I have a perplexing problem. I have installed the 3CXPhone on my Win7 machine at home to test the remote extension. I have forwarded all ports at my office to my PBX. When I dial anything, in this case voicemail 999, I hear it ring, the PBX picked up and no audio. I have call...
SOLVED: No audio on remote extension - General Help ...
https://community.freepbx.org/t/solved-no-audio-on-remote-extension/38501
SOLVED: No audio on remote extension. after replacing (an old) Freebpx installation with 13, the remote extensions are able to register, intitiate calls, but there is no audio. During the call setup I can see a 401 error, and after a few seconds the line is dropped because no response from the external extension.
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
Answer: This is typically caused by networking/firewall configuration issues. 1/ As a first step you should verify that the Firewall Checker Test passed successfully to confirm that the server-side firewall/routing is correct. If that is not the case, networking configuration should be adjusted until it passes by opening ports, adjusting port mapping, and disabling SIP ALG.
3CX external incoming calls no sound - VoIP Forum - Spiceworks
https://community.spiceworks.com/topic/2175148-3cx-external-incoming-calls-no-sound
After upgrading to 3CX version 15.5 SP6, I am now facing an intermittent issue with 3CX external incoming calls. The problem is there are no sounds when we pick up the phone. If we restart all 3CX services it will work again for a week or so. It only happens with external incoming calls, outgoing and internal calls are working fine.
One way audio on remote location. Any advice? : 3CX
https://www.reddit.com/r/3CX/comments/8jy6zg/one_way_audio_on_remote_location_any_advice/
Enabled "PBX Delivers Audio" on all extensions. Set up QOS rules. Set up the 3CX SBC on a machine at our remote site. Ran the firewall checker and made sure all the right ports are visible at the PBX location. I'm now trying to set up port forwarding rules for each respective machine.
3CX Guide - Remote Working Troubleshooting Guid - The ...
https://www.technology-group.com/3cx-remote-working-troubleshooting-guide.html
Go to System - Sound. On the right, select the required device in the drop-down list "Choose your output device". It may also be required to take actions related to the Audio Driver – to update the drive the following applies: Windows Key+X > Device Manager > View tab > Show hidden devices > Sound, Video & game controllers >
Occasional 1 way audio - remote users : 3CX
https://www.reddit.com/r/3CX/comments/fxxaxd/occasional_1_way_audio_remote_users/
My 3CX setup is locally hosted with remote users (non-VPN). This was never a problem when users were on site, and doesn't happen with all users. We're having an issue where occasionally my clients cannot hear on phone calls. We have comcast SIP lines for the back end, and our internet connect is 500 up/down. 80,443,5090, 5060-5061, 9000-10999 ...
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