Aastra 9143i Series Administrator's Manual page 233

A User or Administrator can specify UPnP on specific lines using the
configuration files (using the "upnp mapping lines" parameter) or the Aastra
Web UI (at the path Basic Settings->Preferences->UPnP Mapping Lines).
Reference
For more information about enabling/disabling UPnP Mapping on specific lines,
see Chapter 5, the section,
page 5-87.
Configuring UPnP (optional)
Use the following procedures to configure UPnP on the IP phones.
Configuration Files
For specific parameters you can set in the configuration files, see Appendix A, the section,
on page A-37.
IP Phone UI
Step Action
1 Press on the phone to enter the Options List.
2 Select Administrator Menu.
3 Enter your Administrator password.
Note: The IP Phones accept numeric passwords only.
4 Select Network Settings.
5 Select NAT Settings.
6 Select UPnP.
7 Press Change to select "Yes" or "No". Default is "No".
This field enables or disables the use of UPnP on the IP Phone.
41-001160-03, Rev 00, Releaes 2.4
Configuring Network and Session Initiation Protocol (SIP) Features
"UPnP Mapping Lines (for remote phones)"
Network Settings
on
"UPnP Settings"
4-51