The SIP protocol is commonly used for IP telephone communications. Unfortunately it’s notorious for having issues with NAT traversal. Even some major vendors can’t seem to get it right. [Stephen] had ...
Our VOIP provider says that their systems will have problems if any routers between us & them have SIP ALG enabled. We are certain it is off on our firewall & our landlord says it is off on theirs - ...
Das Problem dabei ist, dass es dabei immer wieder dazu kommt, dass SIP-Pakete falsch umgeändert werden oder dass eine vorher erstellte UDP-Verbindung plötzlich ins Leere führt. Ein Symptom dafür ist ...
Whether it's for firewalls or Virtual Private Networks, we're seeing an increasing emphasis on VoIP Security. The point was hammered home today by a look at the Security Appliances winner in ...
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