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When i setup entire system i had no problem and system goes very well but after 1 or 2 day my SIP TRUNK calls suddenly lost and every body’s call has been terminate!! My modem IP is “10.192.6.25/30” and i connect that directly to an ESXi server and attached that to a VM(my PBX) I have a Asterisk base PBX VM and a SIP Trunk Line that connect to a modem. I have a very confusing problem that caught and get me crazy. I don’t think that would be a problem, because the phones are registering to the server and it seems like the routing on the server would continue to send it to the right vpn ip regardless of how that vpn config is linked to a user. Some of the vpn configs seem to be linked to the wrong users, and they may have been switched up when I had to download them manually and apply them to the phones. So that makes me think it may be a server problem. But we also have a phone at another location that is also on the vpn, and I can’t get audio in either direction on that extension, and that one only. Which makes me think it’s a phone config issue. We have a couple yealinks also on the vpn and they seem to not be suffering from this problem. And once it works once, it seems to continue to work. If the phone has just been rebooted, or reregistered, it tends to fail. The problems are largely intermittent, which makes this more confusing. However, if you try to answer it, sometimes you will be met with a fast busy signal and the grandstream screen will say “no response.” When a call is sent to an extension, the extension rings normally. But doing some testing seems to indicate that this hasn’t solved the problem completely. That took a little while, because these are grandstreams so I had to do that configuration manually. So I set them up with a vpn to the server. I am having some problems with multiple extensions at the same remote location. Wondering if these are just something to ignore I have almost entirely SIP endpoints but going through my log files I found the following I’m running FreePBX14 with Asterisk 13.22