This could happen for a number of reasons. For example a power glitch or a temporary loss of Internet connectivity could leave the IP Phone or other networking equipment in a state where they are unable to recover. Rebooting the affected equipment may restore your connection. Start by rebooting the IP Phone. If that does not solve the problem, a reboot of networking related equipment may be needed.
Rebooting the IP Phone
This may be necessary if you notice an error message on the display and you can’t make a telephone call or if you can’t surf the Internet from your computer which connects through the IP Phone. This may be due to an interconnecting cable having become disconnected or there might have been a power surge. So, first ensure that all the connections are secure. Then reboot the IP Phone as follows.
- Unplug the power cable from the IP Phone.
- Wait 10 seconds, then plug the power cable back in.
- Wait 2 minutes for the IP Phone to boot up and the display indicates it is ready for use.
- Pick up the receiver to confirm that there is a dial tone.
Rebooting other networking equipment
Thunderstorms, power outages and other sources of power surges can cause loss of synchronization and disruption of communication links. So, if you can’t make a call from your IP Phone and/or can’t connect to the Internet, you may need to reboot your networking equipment. This consists of powering down, then powering up your equipment. You do NOT have to disconnect any of the interconnecting cables.
Power down each element in the order shown below then wait a few minutes and power them back up in the same order. To power off a device, turn its power switch off or unplug its power cable. When powering up, wait for each device to become ready before powering up the next one.
- Cable/DSL modem
- Router, if any
- Hub, if any
- IP Phone
- Your computer
You should now be able to make a call using the IP Phone or surf the Internet.