Dear All, I'm having a strange behaviour from firewall Netscreen (Juniper) where it seems the firewall blocked only ACK messages sent from softphone to SIP Server after softphone sent INVITE and server reply with 200 OK. the other SIP Messages like REGISTER or INVITE can reach to server. The softphone it self always sent ACK, but never come to server. I had ethereal trace place on both end. Both softphone and sip server also behind firewall and have port forwarding on all UDP ports. The xlite works perfectly.
Is anyone here knows hows the firewall maybe intercept the sip packet? Thanks and Regards smtel _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
