SBC Uptime

[Midd-Atlas]

Our SBC device seems to be disconnecting from our AWS hosted 3CX phone system. It has worked fine for a few month until late last week. About every 5-10 minutes in the event logs you can see the SBC device connects to the phone system. There are not any errors showing it disconnect only events showing when it connects. I've run PING tests to the SBC, no drops. I've run PINGS to the AWS server, no drops. I've restarted 3CX and the SBC device, no fix. All updates for 3CX and the SBC have been installed. Not sure where to go from here.

 

[Evolute IT]

Our SBC device seems to be disconnecting from our AWS hosted 3CX phone system. It has worked fine for a few month until late last week. About every 5-10 minutes in the event logs you can see the SBC device connects to the phone system. There are not any errors showing it disconnect only events showing when it connects. I've run PING tests to the SBC, no drops. I've run PINGS to the AWS server, no drops. I've restarted 3CX and the SBC device, no fix. All updates for 3CX and the SBC have been installed. Not sure where to go from here.

Maybe the firewall on the phone side was updated and something causing issues?

Also, is your SBC on a Pi or on a PC?

 

[Midd-Atlas]

With the SBC in place we do not have any ports open specific to 3CX. The SBC is running off of a Pi device.

 

[Evolute IT]

With the SBC in place we do not have any ports open specific to 3CX. The SBC is running off of a Pi device.

No need for ports but maybe an ALG is enabled or ARP corruption? Reboot your firewall and see if it persist.

Also, run a endless ping on the Pi and see if there are packet drops. Be sure to use 1492 bytes packet so you can see if it overloads.

 

[Saqqara]

You need to allow 3CX tunnel tcp / udp 5090, along with port 443 or 5001 (https port) for provisioning the phones, address book

No incoming ports