AcerRouter 700 Series User Guide 1-2likely your phone company), you will be given the following information: the type ofISDN switch your phone company is using, and two “directory” numbers associatedwith the two channels. In the North America, you will also be given two SPID(Service Profile IDentifier) numbers.In North America, the AcerRouter 700 often detects the type of ISDN switch andSPIDs automatically. Outside of North America, SPIDs are not used.AcerRouter 700 ApplicationsThe main functions of the AcerRouter Series multifunction routers are- to support devices on your LAN to access the Internet,- to support remote users to dial in and to access resources on your LAN, and- to support inter-office communication.Additionally, it also supports Virtual Private Networking, allowing LAN accessapplications to be performed securely over the Internet.The AcerRouter 700 also supports conventional telephone calls, as well as voice callsover the Internet.Accessing the InternetThe most common use for the AcerRouter 700 is to provide Internet access, so thateveryone on your LAN can surf the web, send/receive e-mail or files.The AcerRouters utilize the single IP address technology that the company pioneeredin 1996 to greatly simplify the configuration: the AcerRouter 700 automaticallyacquires the necessary IP address when the connection to the Internet is established.You don’t need to apply for and assign an IP address to each PC or workstation onyour network.The AcerRouter 700 supports “bandwidth on demand”. For example, any user’sinitial intent to access to the Internet will trigger a B-channel connection to theInternet to be set up. As the traffic builds up (e.g., more users try to access theInternet, or the same user generates a lot of traffic), the AcerRouter will establish asecond connection through the other B-channel. As traffic decreases, one B-channelwill be taken down, until finally, after a configurable period of inactivity, theremaining B-channel will also be disconnected.Figure 1-1 Internet AccessYour LANAcerRouter 700Your Internet Service ProviderISDN