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  1. No audio - RTP stream not sent

    Thankyou for the feedback, this has really helped. I've turned off STUN, it simply wasn't working, perhaps it is a bug. I have a fixed public IP so I don't need it anyway. I've used WireShark (what a brilliant application) and using your suggestion, managed to identify the problem. The stream...

  2. No audio - RTP stream not sent

    I disabled the firewall so I guess the keep-alives are not necessary. 3CX is on a dedicated server provided by a hosting provider (Memset.co.uk) so there are no restrictions on the router apart from what is on my Windows Firewall, which I temporarily disabled

  3. No audio - RTP stream not sent

    ] I disabled the STUN server and entered my public IP. After restarting the 3CX services, on the first call, everything seemed to work OK. On subsquent calls, audio was lost after a few seconds. Very strange. Any ideas? Is there any more information about the error with STUN on 64-bit OS or...

  4. No audio - RTP stream not sent

    I've run the firewall checker and no errors or warnings, all tests passed OK. I have PBX delivers audit switched to ON and checked all settings in the network and other tabs. If I made any changes, I restarted the services after any changes. I'm happy to provide the Wireshark capture and...

  5. No audio - RTP stream not sent

    Hi Craig. Yes, I've run the 3CX firewall checker (Sorry for not mentioning). All tests were paased without any errors or warnings.

  6. No audio - RTP stream not sent

    Please can somebody help. I’m testing the 3CX software with Orbtalk (http://www.orbtalk.co.uk) as the SIP provider. I can make and receive calls without problem but there is no audio either direction. I’m receiving the message “Can't send RTP stream to 193.104.xxx.xxx:39592 destination...
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