(I know this is an old post, so apologies if it no longer is applicable)
You need to get ahold of the administration documentation for these phones. You can get it from Polycom on their public web site.
The web GUI is garbage on these (they are very easy to configure other ways however) - I highly recommend you use another method to manage the phone (I use XML config files via FTP). It's a pain to set up (particularly if you don't have a network server to use and a person who knows DHCP/TFTP/FTP very well). But it's the right way to do this. Once done, you literally just plug the phone into the network and it will automatically update itself - very slick, like you would expect in a good phone.
To upgrade the firmware, it will depend on how the phone is configured. The default method requires a specially configured DHCP server and an FTP server. This is well documented in the Polycom system administrator's manual.
That said, if you have a DHCP server on your network, and the phones are set to use DHCP, all you need to do to connect the phones and get to the GUI is to plug them into the network, find the IP address on the phone using it's keypad and display (Menu -- Status -- Network -- TCP/IP Parameters). Then open a browser to that IP (
https://xxx.xxx.xxx.xxx -- substitute the correct IP address). You'll get a login prompt - whoever configured them can get you username/password (or check the docs for the default).
I really don't like the web interface. It is unintuitive, hard to use, and you'll end up with phones that have different system settings on them (since there are literally thousands of settings on these phones) - so some will do weird things. Using the XML files, you can load multiple files - what I do is:
1. The phone loads the XML file that matches it's MAC address.
2. The phone parses that file and realizes it has to read an extension specific file and a company-wide configuration file. It reads both of these, with the extension-specific file taking precidence in conflicts.
That way, if I want to change every phone in the company, it's one setting.
If Epygi supports the Polycom phones, it should have a way of provisioning these phones automatically the right way - I'd contact them for help. Epygi should also suggest which firmware version to use - and I don't think I'd use a different version than is recommended (they've changed things like BLF in some of the firmware versions, the configuration file formats have changed, etc - so if the provisioning system you use doesn't support the new firmware, you'll have a mess). If they don't officially support them, you'll really want a server on your network that supports the DHCP option these phones will want and an FTP server to allow the phones to pull their configuration. But it's a bit tougher of a road to follow - but the docs are really good from Polycom.
