2.3 Modem Configuration
2.3.4 Modem initialization strings

Initialization strings are used to configure the modem to a known state. They are a series of parameter settings that are sent to your modem to configure it to interact with the access server in a specified way. For example, the modem can accept calls or place them. Some examples of modem initialization strings are shown in the Figure.

Different vendors offer numerous other modems. Always refer to the user manual from the modem vendor for the proper modem commands.

Note that the AppleTalk Remote Access (ARA) 1.0 (or 2.0) client software includes built-in MNP 4 capability. It might have problems if MNP 4 is enabled on the answering modem. Some modems let you disable MNP, but allow LAPM. For example, you can use the following command strings to disable MNP:

USR Sportster series 

ats27=16

Practical Peripherals MiniTower series

at&q9

 
Lab Activity    
  The Atlanta Bread Company now has a remote office in Macon. You will configure the remote router to establish an asynchronous connection to your router.

Suggested initialization strings can be found at the following web link.

Web Links
Modem-Router Connection Guide