[. . . ] EN Dear Customer, Gigaset Communications GmbH is the legal successor to Siemens Home and Office Communication Devices GmbH & Co. Any statements made by Siemens AG or SHC that are found in the user guides should therefore be understood as statements of Gigaset Communications GmbH. Sehr geehrte Kundin, sehr geehrter Kunde, die Gigaset Communications GmbH ist Rechtsnachfolgerin der Siemens Home and Office Communication Devices GmbH & Co. KG (SHC), die ihrerseits das Gigaset-Geschft der Siemens AG fortfhrte. [. . . ] For more detailed explanations of the individual components/terms, see the glossary (page 135). The base station phone and router are set by default so that there is a connection between them. You only have to change the IP configuration for your phone in exceptional circumstances, e. g. if you have configured port forwarding to the phone for the router, or if you had to deactivate the router's DHCP server. In this case you need to assign the phone a fixed IP address. Assigning the IP address Open the following Web page: Settings IP Configuration. In the Address Assignment area, select the IP address type. Select Obtained automatically if you want your phone to be assigned a dynamic IP address by a DHCP server in your local network. Select Static if you would like to set up a static IP address for your phone. A fixed IP address makes sense, for example, if port forwarding is set up on the router for the phone (page 76). The following fields are displayed when you select IP address type = Static: IP address Enter an IP address for your phone. This IP address allows it to be reached by other subscribers in your local network (e. g. The IP address must be from the address block for private use that is used in the router. The subnet mask determines that the first three parts of the IP address must be identical for routers and all subscribers in your LAN. The static IP address must not belong to the address block (IP pool range) that is reserved for the DHCP server of the base station router. It must also not be being used by another device that is connected to the base station via the LAN connection (directly or via a hub/switch). Subnet mask Enter the subnet mask that you have set at your base station router (page 80). Default gateway Enter the private IP address for the base station router (page 80). Your base station phone requires this information to be able to access the Internet. Version 2, 21. 12. 2006 87 CE 450 IP R / IM-Ost english / A31008-M1817-R601_1-7619 / web_server. fm / 02. 03. 2007 IP Configuration Preferred DNS server Enter the IP address for the preferred DNS server. You can enter the private IP address for the base station router here. The router forwards base station phone address requests to its DNS server (page 78). Alternate DNS server (optional) Enter the IP address for the alternative DNS server that should be used in situations where the preferred DNS server cannot be reached. You can also enter the private IP address for the base station router here. Click on Cancel to reject the changes. Allowing access from other networks The default setting for your phone is set such that you can only access your phone's Web configurator via a PC that is in the same local network as your phone. [. . . ] URL Universal Resource Locator Version 2, 21. 12. 2006 Globally unique address of a domain on the Internet. 145 CE 450 IP R / IM-Ost english / A31008-M1817-R601_1-7619 / glossary. fm / 02. 03. 2007 User identification Name/number combination for access e. g. to your VoIP account. V Virtual private network (VPN) Virtual Private Network Computer network that uses a public network (e. g. Virtual server A virtual server provides a service on the Internet that does not run on itself, but on a different network subscriber instead. [. . . ]