Polycom VVX 250 Web Configuration Utility....

I'm trying to gain access to the Web Config Utility on the Polycom VVX 250 handset, to attempt to import contacts directly to the handset, but it appears Comcast has set a password on the Admin account.  I did some research and found that the default password may be 456, but that is not working.

Any ideas?  I have about 70 contacts to setup on 30+ phones in the building, and there's no way I want to do it manually from the handset itself....

Thanks!