VOIP Linphone Incomming Calls Disconecting

Incoming calls terminating after 37 seconds when using Linphone

This fantastic multiple SIP line, multiple platform VOIP soft phone was working great until a week ago where all my incoming calls would terminate after 37 seconds on the dot. Logs were not tell me much. The only indication that was different I could notice was the status icon in the 'My Current Identity' section.

Upon lengthly process of elimination I narrowed it down to an issue with using the UDP as protocol transport for the VOIP calls. Switching it to TCP fixed all my dropped call issues and furthermore the presence status icon is correct; go into your Options > Network Settings > Network Protocols and Ports and switch it to TCP.

I hope this saves someone the same frustration I had as overall this is a great free piece of software.