IP PBX: Is a private branch exchange (telephone switching system within an enterprise) that switches calls between VoIP (voice over Internet Protocol) users on local lines while allowing all users to share a certain number of external phone lines.

No Incoming/Out-Going Calls: Just check the connection or contact the system administrator or network service provider. If the connection is ok, go to settings of the PBX if it’s properly set for client requirements.

Wan Disconnected: Means the phones lost the connection to the PBX. Meaning, it just need to check the physical connection of the Lan cable going to the phones and to the PBX if it’s well connected to the ports and if there is no cut on the wires.

Sip Registered Failed: Internally registration status always stuck in Registering or Register Failed. Solution: Remove the IP address of phone from Blocked IP address.

System Down: Well, random system shutdowns cause nervous breakdowns. A turbulent shutdown of system is actually merciles: it can mess up your life, ruin your work or kill your reputation. So, always need to check if the connection of the main power supply is connected properly and there’s no cut wires. If the wire ends are damaged, you can cut off the ends of the wires and strip off to make a proper wire nut connection.

Phone Has No Power: Same as the solution for the WAN Disconnected, but this time the phone is turn off and its need to check the physical connection of the wires going to the ports of the phones and POE switch if it’s well connected and if there’s no cut wires. This is applicable only for POE ready phones. For non-POE phones, we just need to check the physical power supply of the phones.