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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,can%20be%20resolved%20by%20altering%20the%20account%20configuration.
No audio on sip calls over VPN - Endpoints - FreePBX ...
https://community.freepbx.org/t/no-audio-on-sip-calls-over-vpn/78414
No audio on sip calls over VPN. i have a FreePBX (asterisk) system as my pbx. It is connected to my Mikrotik. I have two Mikrotik i have setup server l2tp VPN and client VPN. Inside my internal lan, 10.0.0.0/24, everything is working fine as voip telephony concerned. When i connected through VPN, i can register my sip phone and i can call every ...
No Audio for SIP calls through OpenVPN - OpenVPN Support Forum
https://forums.openvpn.net/viewtopic.php?t=13367
The VPN is established successfully, and the phone's sip account is registered as well. But there is no audio with some phones, and one way audio with the other. I have read about problems with SIP over NAT, please let me know if there is a solution for this. Here is a brief description of my scenario:
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 if the configuration is not adjusted accordingly to the wireless or 3g/4g network. In most cases this can be resolved by altering the account configuration.
Solved: No audio on voice calls over VPN softphone to/from ...
https://community.cisco.com/t5/ip-telephony-and-phones/no-audio-on-voice-calls-over-vpn-softphone-to-from-remote-site/td-p/2224430
No audio on voice calls over VPN softphone to/from remote site IP Phone. I'm at a loss here, so any assistance will be very much appreciated. I'll do my best to describe the scenario: Softphone -> SSL VPN -> ASA 5510 -> Cisco 4507 CORE -> Cisco 2821 MPLS Router -> MPLS Network -> Cisco 2811 H.323 Gateway -> Cisco 2960 POE Switches -> Cisco 7942 ...
Site to Site VPN working but SIP Voice are not going through.
https://community.spiceworks.com/topic/353865-site-to-site-vpn-working-but-sip-voice-are-not-going-through
Once the call setup has been done then the sip endpoints negotiate two RTP ports to send the audio across (one port is for audio from point A to point B, and the other is audio from port B to point A). These ports are random, typical between ports 10,000 and 20,000. This makes configuring a SIP call troublesome if a firewall and/or NAT is in ...
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
SIP functions using TCP or UDP ports 5060 and 5061. So, a simple and intuitive solution would be to allow ports 5060 and 5061 to be port-forwarded internally. In the following diagram, the external voice endpoint is attempting to communicate with the internal IP phone.
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/
A separate note is with VPNs. If your traffic is routed over VPN and you have a no-audio/one-way-audio problem – test an alternative route to eliminate the possibility that VPN could be the cause of the problem. Dynamic IPs. This happens very rarely, but sometimes devices are under public IPs which change from time to time.
SOLVED - No Audio on end points after connecting VPN | The ...
https://www.voip-info.org/forum/threads/no-audio-on-end-points-after-connecting-vpn.24390/
Hi Team, we have some members using Grandstream wave app remotely to connect with Incredible PBX server 13.28. We are able to register these remotely endpoints using through VPN, however, there is no audio until we white-list remote IP. I know white-listing an IP address is a secure way to allow a connection, but these process become headache when you …
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
There are several techniques for allowing VoIP to function over NAT, including drastically reducing the RTP port range, using UDP Hole Punching or Session Traversal Utilities for NAT (STUN). For more details on how to resolve NAT-related audio issues, see our article on how to resolve one-way or no-way audio on VoIP calls.
One-way Audio over Site-to-Site VPN at Remote Sites ...
https://community.freepbx.org/t/one-way-audio-over-site-to-site-vpn-at-remote-sites/51675
However when I place a call from a Remote Site to the Main Site or another Remote Site, I see the Outbound SIP traffic (port 5060) go out over the Remote Sites WAN connection and not the VPN and there is no RTP port traffic displayed (hence the one-way audio).
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