Problems with SIP
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Problems with SIP

L4 Transporter


We have 3CX server - IP telephony inside the network.When we pass the SIP traffic through PA it gets problems

We try to connect through SIP :5060 port o outside server on ISP side but it doesnt work

we made application override and also disabled ALG

It is natted also by PA itself

have you ever some problems regarding SIP?


Cyber Elite
Cyber Elite


I would just make sure you have all the proper policies in place to allow the traffic. Also check and see if any traffic is getting blocked. Place a DENY ALL policy at the bottom of your list and make sure its set to log at session end. Also take a look at the Session Browser as UDP traffic has to time out before it gets logged at session end.




In addition to what @OtakarKlier said, what are you overriding the application to. Unless you are using a cutom app-id things won't behave as you would expect as the traffic is still analyzed if you select a pre-built app-id. 

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