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SIP - No audio or one way audio :: Zoiper
https://www.zoiper.com/en/support/answer/for/android/11/SIP_-_No_audio_or_one_way_audio#:~:text=When%20using%20SIP%20protocol%20one%20way%20or%20missing,Run%20Zoiper%20for%20Android%20and%20go%20to%20Config.
SIP - No audio or one way audio :: Zoiper
https://www.zoiper.com/en/support/answer/for/android/11/SIP_-_No_audio_or_one_way_audio
SIP - No audio or one way audio. When using SIP protocol one way or missing auido issues mostly appear due to configuration problems. The issues usually appear …
The causes of No-Audio and One-Way-Audio VoIP Calls ...
https://blog.kolmisoft.com/the-causes-of-no-audio-and-one-way-audio-voip-calls/
This happens very rarely, but sometimes devices are under public IPs which change from time to time. This could also be the cause of a no-audio or one-way audio problem. Errors in the signaling. The SIP standard defined in …
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)
SIP no audio with FreePBX | Netgate Forum
https://forum.netgate.com/topic/163469/sip-no-audio-with-freepbx
I have a SIP client on internet which is configured to connect on x.x.x.218. The client registers on FreePBX and I can make and receive calls, but audio is a problem. If I place the call on the SIP client, there is no audio at all. If I place the call elsewhere and call the SIP client, the SIP client side has audio, but not the other side.
SIP behind firewall no audio in both ways - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/sip-behind-firewall-no-audio-in-both-ways/td-p/4191197
SIP behind firewall no audio in both ways. Hello Everyone im new in voip im working in new project and i have this toplogy. Cisco jabber -->Cucm-->Cube-->Firewall (sophos)--->INTERNET (SIP-Trunk) the problem was the phone ringing but there's no sound in both ways and i think the problem is NAT. the firewall is sophos.
How to troubleshoot one-way / no audio issues - Cisco ...
https://community.cisco.com/t5/collaboration-voice-and-video/how-to-troubleshoot-one-way-no-audio-issues/ta-p/3164442
no inspect sip. If that clears the issue then you may need to tune SIP inspect, (open a TAC case with the ASA security team), or leave that disabled. Another common issue is that the RTP ports are not open or explicitly blocked, so check the following: RTP ports: 16384 - 32767 / UDP Real-Time Protocol (RTP), Secure Real-Time Protocol (SRTP)
[HELP] SIP -> H323 No Sound Problem - Asterisk Support ...
https://community.asterisk.org/t/help-sip-h323-no-sound-problem/4881
Yet now in deployment stage we seem to have a problem. Our SIP phones do not transmit sound over to the external network. IAX => H323 Trunk => Softswitch works IAX <=> SIP Works SIP => H323 Trunk => Softswitch doesn’t work. Doesn’t work meaning that the call connects, and clears correctly, but no sound is transmitted anyhow. ...
MicroSIP - no Audio : sip
https://www.reddit.com/r/sip/comments/mkv197/microsip_no_audio/
But here comes the problem: whenever I speak, the microphone level bounces up and down on the "phone" that microphone is connected to (as expected), but no audio is transmitted. I even tried using different microphones (one for the laptop and another one for the VM. ... Each SIP user agent needs to signal the actual IP addresses of each agent ...
How to resolve one-way or no-way audio on VoIP calls
http://info.teledynamics.com/blog/how-to-resolve-one-way-or-no-way-audio-on-voip-calls
One of the most common challenges involves a technology called Network Address Translation (NAT), which for data networks has been a godsend, but if not configured carefully, could cause problems for voice applications. In particular, NAT is a common cause of one-way and no-way audio on VoIP calls.
Solved - Audio problem | 3CX Forums
https://www.3cx.com/community/threads/audio-problem.75570/
If you have changed the firewall and the issue is due to this then you still need to concentrate here most likely, if the firewall checker passes (despite the fact that the majority of the time one way/no way audio is the result of a blocked audio port) check also for settings such as SIP ALG, SIP Transformations or SIP helper on the firewall.
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