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Option 128 is the dchp option for the tftp server. This is where the phone gets its firmware from the phone system. You can static this information into the phone.
It means that your DHCP server on your network is missing the options to allow your phone to boot up. After a month (time on this message), I hope you've managed to get the issue resolved. If not, I hope you've fired your IT support team - they should be able to get this resolved quickly.
I had this problem as well. This is a configuration that needs to be added to your DHCP server to enable the mitel system to obtain an iP address. If you reboot the phone and hold the down arrow it should bring you to a screen you can manually enter the IP address of the network you are useing.
Option 128 tells the phone where the phone system is. A linksys router isn't capable of giving this option out. Where is the telephone system? Is this a teleworker phone? if TW phone, press and hold the 7 key while booting the phone, and type the teleworker server IP address. I recommend you contact your administrator or system vendor for guidance.
Unplug the power from the phone. Hold down the Down Arrow key, and power it back on while holding the key. You will get an option to default the phone to factory settings.
It means either that Option 128 is missing in your DHCP server or you are pulling the correct IP address (maybe incorrect VLAN). If you log in to the PBX and click the Help, just do a search on DHCP and it will explain this in further detail.
My assumption is that your DHCP server isn't set up properly, or that someone has connected a Router to your network. I suggest you contact your system administrator or vendor for further assistance.
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