Farallon Communications 412 Manual Do Utilizador

By default, the ISDN modem makes calls using the 2 B channels. 
Note that there may be cost implications to the use of two B 
channels. Check your usage rates with your ser vice providers, such 
as the telephone company, Internet Ser vice Provider, or online 
ser vice provider.

Some Multilink PPP implementations require the use of a Multilink 
PPP option called the Multilink Endpoint Identifier. The Multilink 
Endpoint Identifier is a number that the Netopia ISDN Modem uses 
to distinguish its Multilink PPP calls to a remote router from other 
Multilink PPP calls. The default Multilink Endpoint Identifier for the 
ISDN modem is the first B Channel’s director y number (as entered 
in S register 51). The Multilink Endpoint Identifier must be unique in 
order to identify the ISDN modem’s PPP call. This Multilink Endpoint 
Identifier also identifies the Multilink session and allows the remote 
router to add or subtract B Channels to that Multilink PPP session 
when the ISDN modem requests it.

You probably won’t need to change the default settings for the 
S registers that control the Multilink Endpoint Identifier (S registers 
82 and 83) unless other wise specified by your systems 
administrator or ISP. The defaults are S82=5 (Public Switched 
Network Director y Number) and S83=(initially empty). (If you have 
S82 set to the default value of 5, leave S83 empty. The ISDN 
modem will later automatically fill in S83 with the director y number 
entered in S register 51.) If you do change the Multilink Endpoint 
Identifier, however, make sure the number you specify is a “unique” 
number to the equipment you are dialing into so the equipment will 
not confuse your Multilink PPP call with another call.