audio

  1. Intermittent One-Way Audio (No Incoming Audio) During Consecutive WebMeetings – V20 Update 9 (Build 995)

    Description of the Issue We are experiencing a highly frustrating and intermittent audio issue affecting our users during 3CX WebMeetings. The primary symptom is that a user will start their day hosting several consecutive, one-hour meetings. The first few meetings work perfectly with...

  2. Yealink T46U - audio and connection issues

    Hi, I am trying to troubleshoot a problem I can't even isolate between the phone, pbx, and sip vendor. I have opened a ticket with sip vendor about dropped calls. Though I think this has to do with the phones and/or 3cx pbx. I have 2 centers in different suburbs and using 3cx ent/ai for 8c...
    • shavu
    • Thread
    • audio connection dropped
    • Replies: 9
    • Forum: Yealink

  3. 3CX v20 hosted - no audio on Webclients

    Hello, Web clients have been working but they are not used that often as it is only for infrequent home working. Most of the out of office use is on the mobile 3CX app, which works well Hosted install Version 20.0 Update 6 (Build 724 Release) Not sure for how long but when testing web clients...

  4. Capturing live audio stream of a call

    Good afternoon, We are trying to capture the live audio streams of incoming calls and have tried different approaches so far: Adding a third party to the call to capture the audio streams of both participants. Using CallFlow, we were unable to add a third participant via "Make Call" after the...
    • Max Doll
    • Thread
    • audio streaming
    • Replies: 6
    • Forum: Other

  5. Error report: audio input devices in the 3CX Client: Softphone: 5.1 BUILT 895 (Windows Store App)

    Client OS: Windows 11 x64 24H2, with Cumulative Update from 08.07.2025 3CX Client: Softphone: 5.1 BUILT 895 (Windows Store App) 3cx Server: V20U6 Final, with Debian Error report: audio input devices in the 3CX Softphone Client. We are experiencing an issue where the audio input and output...
    • enosupp
    • Thread
    • audio devices input issue microphone misbehaviour speaker
    • Replies: 2
    • Forum: Windows

  6. Random USB Headset disconnections whilst using V20 Softphone App

    Hi All, We are currently using EPOS Adapt 160T/165T headsets connected to Windows laptops using USB-C. However we are receiving a number of reports that at times, the softphone app loses connection with the headset with the result that no audio communications are possible, the user cannot take...
    • eig-support
    • Thread
    • audio usb headset windows 3cx client
    • Replies: 1
    • Forum: Windows
  7. TLCtech

    QCB no audio after connection

    We have recently started using the QCB feature, but are having a heck of a time with it. Someone will call in, select the call back, and the call back begins. After the agent is selected, answers, and is placed on hold, eventually the hold music stops and there is no audio on the other end...

  8. Audio Problems with default AGC enabled and acoustic feedback

    We use the video function of 3cx a lot to hold meetings with external people. Unfortunately, the problem is that you can't hold conferences without a headset. If a member only uses the speakers, there is acoustic feedback when they speak. This means that it is not even possible to use it...

  9. Audio Issues on Remote 3CX Windows App v20

    Hi, We are experiencing issues with some extensions being used remotely. Our 3CX system is hosted in Dubai, and we have users in Pakistan. While they can use 3CX on mobile devices without any problems, there is no audio when using it on laptops with the Windows app. However, when accessing the...
    • Edmo
    • Thread
    • audio no audio on 3cx app no sound remote connection sound
    • Replies: 2
    • Forum: Windows

  10. Calls Cutting/Going Silent mid call

    Hello All I hope all is well! We are experiencing an issue with one of our clients (Roughly 12 users) who make and receive a lot of calls but roughly a week ago the agents started complaining that both their incoming and outgoing calls would randomly go silent and or the calls would simply cut...

  11. 3CX Web Client Ringtone

    Hi guys, I'm having an issue with a customer who is complaining about the high volume of 3CX WebClient ringtones. Would there be a way to change this volume without me changing the volume of the calls or the entire browser? Ps: They only use one audio device so I can't put the ringtone to one...

  12. Strange One Way Audio Issue

    We have been having a really weird and specific issue that I have not been able to figure out. The phones in our office are 3CX, its an on-premise system, running on Debian. We use sip.us for the provider. We have a client who is also on 3CX on Debian, and they're using Voxtelesys. When we...
  13. Martyn Gregory

    Solved V20 Desktop App

    When on a call internal to internal or internal to external on the version 20 app, audio seems to come and go as if the mic gain is constantly being adjusted up and down. We have also noticed that the overall call volume appears to be slightly lower than the v18 app and the PWA. Not a major...
    • Martyn Gregory
    • Thread
    • 3cx app audio store app v20 v20 desktop windows store
    • Replies: 4
    • Forum: Windows
  14. Connexium

    Caller audio is WAY too loud - Not 3cx related issue

    Hello, Would anyone know how to solve an issue where the caller's audio is way too loud? I am 99.99% sure it is not related to 3cx since all other calls made using Yealink T57w desk phones sound excellent. So in this case, the Caller is using 3cx Desktop App on Windows and is cold calling...

  15. Audio using rdp on an virtual machine

    If we have the desktop app on a hyper-v virtual machine and we make an rdp connection how can we have the audio/mic also without the need to install the desktop app in the pc that initiates the rdp to vm?
  16. Wesley | Ruijs IT

    WebRTC Automatically Microphone gain

    Hi, Each time when I am in a call my microphone level is automatically lowered and it is very annoying. I've done some research and I've found out that in in the code of the Desktop App the "autoGainControl" option for WebRTC calls has been enabled. This means that the microphone level will be...
    • Wesley | Ruijs IT
    • Thread
    • audio automatic gain control automatic microphone gain gain microphone microphone gain webrtc webrtc audio
    • Replies: 0
    • Forum: Web Client

  17. Solved Prompt Playback from external

    Hi, I would like to play audio file from external server. In that case I need to be able to download it first. I already found edossantos's post but it doesn't work for me. Full C# code I use: using System; using System.Collections.Generic; using System.IO; using System.Net; using...

  18. MS Edge clients unable to hear audio in the meeting

    I just wanted to report that I just got done diagnosing an issue with a Windows 10 Pro (x64) user who couldn't hear anything even though the chime button worked inside 3cx meeting settings. The issue turned out to be MS Edge browser. We tried Firefox and Chromium and they both worked. I just...
  19. Leo_B

    Inbound Calls - Can't Hear Caller Issue

    Hiya, For the last several days, one of our customers reports 'increasing' number of inbound calls issues - the office staff can hear the callers, but callers fail to hear them. Quite often a bunch of extra calls from customer resolves the problem, and a significant number of calls from outside...

  20. Forward recorded file to mailbox of extension

    Hello, I made a callflow and record an audio file. Afterwards I send it via Mail to a group mail account. Additional to that, i want to sent this audio file to extensions. We want to have the possibilitie to have the audio message on the phone and play it from there. Is there a way to do this...
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