Problim SIP with PFsense 2.4.2

  • hello all,
    It's a pleasure for me to join forum. I am new to using PFsense and am having a problem with my SIP communications.

    in fact I installed in my network a firewall PFsense 2.4.2 behind which is my server sip based on asterisk (Xcally). after having all configured, I encounter a problem with outgoing calls that only last 6 seconds and automatically shut down. incoming calls for them normally work.

    I have three interfaces, one for the SIP, the other for the WAN and the last for my LAN under which I configured vlans.

    could someone have an idea on how to fix this outgoing call problem that only lasts 6 seconds ????

    thank you in advance

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