3com 3C886 User Manual

This section describes changing the data call parameter default settings. The data 
call parameters consist of timeout values for both automatic calls and manual 
calls.

The timeout values are a useful means of controlling bandwidth efficiently while 
keeping telephone usage and Internet access costs down. If there is no network 
activity on a call for a specified amount of time, then that call is automatically 
disconnected.

The Data Call Parameters window, shown in Figure 42, contains the following 
fields.

Figure 42   Data Call Parameters Window

The minimum call duration is the minimum length of a call that must be satisfied 
before an inactivity timer can begin. The default for the minimum call duration is 
two minutes.

An automatic data call is made by the LAN Modem automatically due to activity 
on the LAN; an example would be a user launching his or her Web browser. 
Because the parameters for the call, such as the telephone number and user 
name, have been previously defined, a call to an ISP, for example, may be 
automatically and transparently launched with a click of your Web browser. 

You can define the amount of time the LAN Modem should wait before 
disconnecting this type of data call due to inactivity. The inactivity timer runs