I have polycom 501 SIP It is aying Error loading <MAC ADDRESS>.cgf and reebooting.

SOURCE: Dead Polycom 501

u have the cable plugged in backwards
check it

SOURCE: failed to get boot parameters via DHCP

You didn't provide any information about your network which is ALWAYS required to provide any type of help, not to mention a solution.

"Failed to get boot parameters via DHCP, xxx seconds until reboot" simply means that the computer isn't getting an IP address from your router. Setting up your router is another entirely separate topic.


This is pretty simple though, one of three things is happening:

1. Your router is not properly configured to provide DHCP to the phone.
2. Your network cable is bad.
3. Your phone is bad (most likely the RJ45 port since the phone seems to work otherwise).

You can check for bad ports or cables by checking the port status within the router. If the port is lit up, most likely the cable and phone port are fine. This is not 100% though, replacing the cable should always be a consideration even with a lit port.

Testimonial: "thank you"

SOURCE: Making a Polycom SoundPoint 501 work on an Avaya IPO

As you have probably found, SIP phones are not supported until R5, which just came out.

SOURCE: can ping my polycom 501 but cannot open with my

Have you tried a factory reset from the menu interface? Be careful if you do, and only choose "Format File System" as a last resort, and only if you feel comfortable enough setting up a FTP/TFTP boot server to re-provision the phone, as this option will erase everything, and then all it'll do is get stuck in a boot cycle until reprovisioned.