Configuring Polycom IP Phones (v3 Firmware)
1. Start up your phone and identify it’s IP address. You can find your phone’s IP address by going to the Status option section within the menu. Once in the Status section, click on the Network option and select the TCP/IP Parameters option.For this example we’ll assume that the phone’s IP address is 10.0.0.108 and that your Hosted Phone is company.spchosted.com.
2. Point your browser to the web interface of the phone: http://10.0.0.108
3. You’ll now need to set your Polycom SoundPoint to register with your Hosted Phone server. Click on the Lines tab and configure as follows: 
In the Identification section of the Lines tab:
1. Set the Display Name field to the name you want to appear on the phone’s display
2. Set the Address field to the extension number you want to associate with your phone
3. Set the Auth User ID field is the extension number
4. Set the Auth Password field to the extension’s Password or “Secret”
In the Server 1 section of the Lines tab, do the following:
1. Set the Address field to your Hosted Server (ex company.spchosted.com)
2. Set the Port field to 5060, which is the default
3. In the Local Settings section of the SIP page, set the Digitmap field to blank by removing all the contents
4. Click the Submit button at the bottom of the page. Your Polycom phone will restart itself. After it has finished rebooting, your phone will register itself with your Hosted Phone system