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Why do I get one way audio when making phone calls?
https://my.gradwell.com/s/article/why-do-i-get-one-way-audio-when-making-phone-calls#:~:text=Why%20does%20one-way%20audio%20occur%3F%20The%20most%20common,internet%20and%20allows%20other%20computers%20to%20find%20you.
Solved: Intermittent VOIP One Way Audio - Check Point ...
https://community.checkpoint.com/t5/General-Topics/Intermittent-VOIP-One-Way-Audio/td-p/75168
Hi, I am seeing an issue with intermittent one-way audio / transmission on VOIP calls. Happens every 1 in 6 or 7 calls I'd say. If the issue happens mid-way through the call, logs show as normal/accept/matched to rule 47, etc. The immediate call after that more often than now has OWT from the start...
[SOLVED] Intermittent one way audio with VoIP - double NAT ...
https://community.spiceworks.com/topic/1469500-intermittent-one-way-audio-with-voip-double-nat-issue-possibly
I am running into a very frustrating issue with one way audio very intermittently on some calls. 99% of calls work fine but now and again I am experiencing one way audio - this can be both ways. I've taken this up with my VoIP provider and then have asked for a WAN side capture, which due to my setup I am unable to provide.
How to solve VoIP one way audio- step by step.
https://www.voipmechanic.com/voip-one-way-audio.htm
The first step in one way audio troubleshooting is to simplyfy the connections. This allows you to identify the actual cause of the VoIP one-way audio. Do the following: Connect the VoIP ATA, IP Phone, or PC with softphone directly to the modem device. Make sure you get registered and obtain a valid IP address.
How to troubleshoot one-way and no-way audio on VoIP …
http://info.teledynamics.com/blog/how-to-troubleshoot-one-way-and-no-way-audio-on-voip-calls
The vast majority of one-way or no-way audio problems are a result of the blockage of RTP ports for the voice stream. There may be many reasons why these ports would be blocked. Some of the most common are: (1) Network Address Translation (NAT)
Intermittent one way audio - CME -SIP T... - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/intermittent-one-way-audio-cme-sip-trunk/td-p/1969167
Intermittent one way audio - CME -SIP Trunk. We are experiencing intermittent one way audios. So to verifiy for evey cal show voip rtp connection was used. By this we found all the one way audio was caused by only one IP address and the good calls have a different IP. Has anyone experienced this, if so what was the solution.
Intermittent one way voice - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/intermittent-one-way-voice/td-p/2471495
Users are complaining that there are one way voice sometime and it is quite random and intermittent. Most of the times it is fine but sometime there are issues when the caller is not being able to hear but the called person is able to hear. The strange thing is that if Site A calls Site B then Site A is not able to hear but site B can hear; again if site B calls then the …
intermittent audio issues - VoIP Forum - Spiceworks
https://community.spiceworks.com/topic/452709-intermittent-audio-issues
One audio stream is setup in each direction. One way audio usually means that one of these RTP audio streams are not connecting correctly. The annoying part of these audio streams is that they are setup dynamically during SIP. The ports used are random ports between 10.000 and 20.000.
Intermittent one-way audio issue to PSTN : VOIP
https://www.reddit.com/r/VOIP/comments/252h41/intermittent_oneway_audio_issue_to_pstn/
Start with verifying the SIP messaging is good and one side isn't setting media to sendonly or recvonly. Once you verify the SIP messaging, then you start looking into specific network problems. Since it's intermittent, it could be a dynamic routing issue or possibly an ACL somewhere only allows UDP ports up to 30000 and the port for this call is above that.
Solved - Intermittent one way audio - fixed with server ...
https://www.3cx.com/community/threads/intermittent-one-way-audio-fixed-with-server-restart.62671/
One way audio is predominately a network issue - for example SIP ALG or ports blocked on your network firewall. As this does not happen all the time this may not be the root cause, but it would be worth running the firewall checker on 3CX to see if it all checks out.
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