PSTN Mode
After you connect your phone for PSTN use and start it for the first time, your phone will 
automatically prompt you to enter certain information.
To set up the phone for PSTN use:
After your phone starts for the first time, the Select Country screen automatically displays, as 
shown next. Use the Down Navigation key to select the country your phone operates in, and 
then press the Select soft key.
After you select the country, the Select Language screen displays, as shown next. Use the 
Down Navigation key to select the language you want your phone to display, and then press 
the Select soft key.
After you enter the country and language, your phone updates its settings and displays the 
idle screen, as shown next.
To configure more advanced settings, see the Administrator’s Guide for the Polycom 
UC Software available from the 
Polycom recommends that you upgrade the software on the 
phone so it uses the latest version.
To upgrade the phone’s software:
1. Log in to the Web Configuration Utility as an administrator.
The default password for an administrator is 456.
2. From the Main Menu, select Utilities, and then select 
Software Upgrade.
3. From the Software Upgrade screen, choose to look for 
software from either the Polycom Server or a specified 
Custom Server.
4. Click Check for Updates to display the available software 
versions on the specified server.
5. From the drop-down list, select a software version.
6. To install the software, click Install.
Note: If you are unable 
to upgrade your phone’s 
software, see your 
network administrator 
or the Administrator’s 
Guide for the Polycom 
UC Software.
Upgrading Your Phone’s Software
 
SoundStation Duo Support web page.