Dial-in Functionality 25Dial-in Functionality When you set up the LAN Modem for dial-in support, you can configure up to tendesignated Dial-in Users to dial in to the local LAN. In addition, you mustconfigure Dial-in Global Parameters which apply to all dial-in calls.When you configure Dial-in Global Parameters, you choose whether to allow oneor both channels to be used for dial-in calls. In addition, you choose whether toset up all dial-in connections as single channel calls or Multilink-enabled calls, and you also set the number of rings before the LAN Modemanswers the incoming data call. Depending upon your choice, the followingtypical calling scenarios become possible:Simultaneous Dial-inand Dial-out CallsIf you configure the LAN Modem to make only one channel available for dial-incalls, you can have one dial-in and one dial out call occurring simultaneously, asshown in Figure 11.Figure 11 Simultaneous Dial-in and Dial-out ConnectionsSmall Office LANServerOfficeConnect¤Dual 56K LAN ModemTwo analog linesTelecommuterInternetPublic telephonenetworkALERTLAN STATUSPOWERB1 B2TX1 2 3 4COLLISDNOKISDN LAN Modem3C892Alert PowerMessageRDAA CD SD OH RDAA CD SD OHOfficeConnect Dual 56k LAN Modem1TX COLL 2 3 4LAN StatusMODEM 2MODEM 1
