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No Audio on Remote Allworx voip phones behind 30D ...
https://community.fortinet.com/t5/Fortinet-Forum/No-Audio-on-Remote-Allworx-voip-phones-behind-30D/m-p/42259#:~:text=The%20problem%20is%20incoming%20calls%20from%20the%20Main,number%20that%20you%20identified%20from%20the%20previous%20command.
Technical Tip: VOIP calls (using SIP) - Fortinet Community
https://community.fortinet.com/t5/FortiGate/Technical-Tip-VOIP-calls-using-SIP/ta-p/193831
Also need to make sure that the SIP-phone is configured to use the same accepted range of audio ports. Failing to do so, will likely result in no audio, or one-way audio (incoming audio is ok, destination cannot hear the user). Related links. https://docs.fortinet.com/document/fortigate/6.4.5/administration-guide/858887/voip-solutions
Troubleshooting Tip: One way Audio issue in VOIP c ...
https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-One-way-Audio-issue-in-VOIP-calls-caused-by/ta-p/203336
SIP ALG translates SIP and SDP parameters when the packet is sent to the SIP provider. Most of the SIP providers recommend disabling SIP ALG. Both sides send Connection Information (c=IN) to establish RTP/Audio session. If private IP is sent in connection information, RTP traffic on private IP will fail.
Technical Tip: How STUN resolves SIP NAT issue - Fortinet ...
https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-STUN-resolves-SIP-NAT-issue/ta-p/199783
No audio issues observed. There are no helper/ ALG in this case. Therefore, no expectation session will be created. Extras: Firewall Configuration: “permit-stun-host”, Fortigate will open pinhole if request is valid stun. However, fgt may not be able to know all stun request format, so permit-any-host was added.
No inbound audio behind Fortinet Firewall | 3CX Forums
https://www.3cx.com/community/threads/no-inbound-audio-behind-fortinet-firewall.4951/
Fortigate issues such as one way audio on Call Pickup With ...
https://www.cyber-cottage.co.uk/?p=1625
Open the Fortigate CLI from the dashboard. Enter the following commands in FortiGate ’s CLI: config system settings; set sip-helper disable; set sip-nat-trace disable; reboot the device; Reopen CLI and enter the following commands – do not enter the text after //: config system session-helper; show //locate the SIP entry, usually 12, but can vary.
VOIP calls sometimes missing audio: Fortinet firewall …
https://arstechnica.com/civis/viewtopic.php?t=1281821
VPN and Mitel Connect VoIP software - no audio - Fortinet ...
https://community.fortinet.com/t5/Fortinet-Forum/VPN-and-Mitel-Connect-VoIP-software-no-audio/m-p/78737
The SIP helper/ALG reads the traffic, modifies IP's and opens ports for the audio the pass. So this could very well be an SIP helper/SIP ALG issue. You are most likely using ALG-mode - in this case changing SIP helper settings has no impact. Can you verify with: # show full | grep default-voip. set default-voip-alg-mode proxy-based
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
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
No Audio on Remote Allworx voip phones behind 30D ...
https://community.fortinet.com/t5/Fortinet-Forum/No-Audio-on-Remote-Allworx-voip-phones-behind-30D/m-p/42259
The problem is incoming calls from the Main Office have no problem, and audio is fine etc. Outgoing calls from the Remote Office have no audio (not even one way audio) I did the following commands on the Fortigate CLI from the dashboard to disable SIP ALG etc. 1) Enter the following commands in FortiGate’s CLI: config system settings set sip-helper disable set sip …
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