Asterisk Behind Nat One Way Audio

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Correcting One-way Audio with a VoIP Call - Asterisk

https://www.asteriskpbxsystems.com/troubleshoot-oneway-audio.html

Connect the ATA/IAD or other SIP device directly to the first device on the LAN such as the modem. Check for normal operation and good two-way audio. If you experience one-way audio or do not receive dial tone, then the issue will most …

One way Audio on endpoint? - Asterisk Endpoints - Asterisk ...

https://community.asterisk.org/t/one-way-audio-on-endpoint/73947

Solutions on Asterisk side might help you when your Asterisk server is located behind NAT. However, in your case endpoints are behind NAT. To eliminate the issue, you should refer to the network administrator responsible for location C and perform one of the following actions depending on their equipment and security policies:

How to setup your Asterisk PBX if you are behind a NAT ...

https://my.gradwell.com/s/article/how-to-setup-your-asterisk-pbx-if-you-are-behind-a-nat-firewall

If your Asterisk PBX is behind a NAT firewall, i.e. the PBX has an IP such as 192.168.0.2 then you will need to perform additional configuration to allow Asterisk to route the SIP and RTP correctly. The NAT configuration can be found in the file /etc/asterisk/sip.conf, the relevant section that needs to be edited is reproduced below:

SIP with NAT or Firewalls - Asterisk Guru

http://asteriskguru.com/tutorials/sip_nat_oneway_or_no_audio_asterisk.html

Asterisk will send the audio to the port and ip where its receiving the audio from. Instead of relying on the addresses in the SIP and SDP messages. This will only work if the phone behind nat send and receive audio on the same port and if they …

Asterisk 15 on AWS, Correctly configured NAT, No audio on ...

https://community.asterisk.org/t/asterisk-15-on-aws-correctly-configured-nat-no-audio-on-sipml5-based-soft-phone/75459

Hi all, I am not able to hear any audio on my sipML5 based sip phone. Not able to send audio to asterisk either. (one-way audio issues) My stack: I have my asterisk (15.x version) deployed on AWS cloud, with all the ports open (since we are in the development phase).

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