2 of 4 lines on external SIP phone keep dropping

Hi @ptravel,
Hi all,

i have the same problem as you:
From 4 phones in total one phone is regularly dropping from online to offline; unfortunately the phone is more offline than online.


On the other hand all inbound or outbound trunks are constantly online as well as the other phones.
I discovered this problem today. (Maybe it started after my upgrade to FreePBX 13 which i have done last saturday?)

The FreePBX-Server is running on a vServer at a public ISP.
Two of the phones (140 [working] / 470 [phone with problems]) are on the same site (at home) using the same internet connection. So I assume this couldn`t be (only) a network connection issue.

There were no changes to the firewall or the used hardware.

Best regards,
Patrick