› Forums › Network Management › ZeroShell › GENERICAL VOIP PROBLEM WITH NO ANSWER and NO SOLUTION › Reply To: GENERICAL VOIP PROBLEM WITH NO ANSWER and NO SOLUTION
Making some generic affirmations will not fix your issue. There are many messages because there are different PBX networking setup. Here are most common:
1) PBX Inetrnet ZS NAT SIP Clients — zhis is what I use, should be no setup / config however you can check conntrack and sip kernel module options. However I found that I need to do a contrack – f command every time I reboot ZS, else some SIP clients will not register.
2) SIP Client Internet ZS NAT PBX . Here u should forward ports or place PBX into a DMZ zone. ZS doesn’t have a DMZ section like a cheap router you will have to create it.