User manual ITT SCHAUB-LORENZ GOLF EUROPA 103

[. . . ] These changes may involve changes to the described solutions over time. Use of Proprietary Information and Copyright Notice: This document contains proprietary information that is to be used only by Sipura Technology customers. Any unauthorized disclosure, copying, distribution, or use of this information is prohibited. Please Note: Design and specifications are subject to change without notice. © 2003 - 2005 Sipura Technology, Inc Proprietary (See Copyright Notice on Page 2) 2 DRAFT Table of Contents 1 2 HOW TO USE THIS DOCUMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 IMPORTANT OPERATING INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Compliance and Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] More importantly, packets sent from that public address/port to the external address/port of the NAT will be routed back to the private address/port of the mapping session that is in effect. Some NAT devices actually reuse the same mapping for the same private source address/port to any external IP address/port and/or will route packets sent to its external address/port of a mapping from any external address/port to the corresponding private source address/port. These characteristics of a NAT can be exploited by an SPA to let external entities send SIP messages and RTP packets to it when it is installed on a private network. VoIP-NAT Interworking In the case of SIP, the addresses where messages/data should be sent to an SPA are embedded in the SIP messages sent by the device. If the SPA is sitting behind a NAT, the private IP address assigned to it is not usable for communications with the SIP entities outside the private network. The SPA must substitute the private IP address information with the proper external IP address/port in the mapping chosen by the underlying NAT to communicate with a particular public peer address/port. For this the SPA needs to perform the following tasks: © 2003 - 2005 Sipura Technology, Inc Proprietary (See Copyright Notice on Page 2) 32 DRAFT Discover the NAT mappings used to communicate with the peer. For example a server could be deployed on the external network such that the server will respond to a special NAT-Mapping-Discovery request by sending back a message to the source IP address/port of the request, where the message will contain the source IP address/port of the original request. The SPA can send such a request when it first attempts to communicate with a SIP entity in the public network and stores the mapping discovery results returned by the server. If the entity is a SIP Registrar, the information should be carried in the Contact header that overwrites the private address/port information. If the entity is another SIP UA when establishing a call, the information should be carried in the Contact header as well as in the SDP embedded in SIP message bodies. The VIA header in outbound SIP requests might also need to be substituted with the public address if the UAS relies on it to route back responses. To access the Administrator level privilege, use URL: http://IP_Address_Of_SPA/admin/. If the password has been set for Administrator, the browser will prompt for authentication. The username for Administrator is "admin" and cannot be changed. To access the User level privilege, use URL: http://IP_Address_Of_SPA/. If the password has been set for User, the browser will prompt for User authentication. When browsing Administrator pages, one can switch to User privileges by click the link "User Login". (Note: if User password was set, the browser will prompt for User authentication when you click "User Login" link). On the other side, from the User pages the user can switch to Administrator privilege by clicking the link "Admin Login. " Authentication is needed if Administrator password has been set. Warning: Switching between the User and Administrator will discard the uncommitted changes that have already been made on the web pages. Web Interface Basic and Advanced Views The web configuration interface provides a Basic and an Advanced view from which the various configuration parameters can be accessed. The SPA Provisioning tab is only visible from the Advanced Administrator view of the web interface. Warning: Switching between the basic and advanced view will discard the uncommitted changes that have already been made on the web pages. 10 GOLF EUROPA 103 Configuration Parameters This section tabulates all the GOLF EUROPA 103 parameters. [. . . ] The LEC charges a monthly fee to the customer, who must agree to sign a term agreement. Circuits: The communication path(s) that carry calls between two points on a network. Customer Premise Equipment: The only part of the telecommunications system that the customer comes into direct contact with. Example of such pieces of equipment are: telephones, key systems, PBXs, voicemail systems and call accounting systems as well as wiring telephone jacks. [. . . ]