Dear All,
We have a very strange issue which is happening for one way audio for the voice.
We have done the default configuration disable sip and nat trace globally and session helpers.
Now we did some testing:-
Scenario 1:-
Port :- Access 10 Voice Vlan 20 --> IP Phone doesnt work and there is one way audio
Scenario 2:-
Port:- Access Vlan 20 (assigned voice vlan) --> IP Phone works and there is no issue.
we are not changing any configuration or access list other port configuration.
We are not able to understand by this is happening only when we are tagging it with voice vlan rather than access vlan.
Can someone shed some light on this.
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Have you checked this?
https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-One-way-Audio-issue-in-VOIP-with-SIP...
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