Fongo powers free calling solutions for a number of brands. This forum includes information and tips on all of those offerings. Note that your specific services may vary based on the specific Fongo product that you're using.
Have a question or problem with your Fongo application? This forum is the place to get help from both staff and fellow community members.
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It's the router. This problem happens all the time. The number one issue with the service using an adaptor is that you need to have some kind of routing device in order to hook up both a computer and an ATA. But, all routers have firewalls. These firewalls tend to mostly block incoming traffic - meaning that you can't hear them - but the outgoing traffic is not blocked - so they can hear you.
Open these ports depending on what you have:
ATA Line 1: UDP 5060
ATA Line 2: UDP 5061
Softphone: UDP 13000 and UDP 13001
Curtis Smale Student of Wilfrid Laurier University