Hayes Microcomputer Products DIVA T/A - Manual (Page 31)

DIVA T/A PC Card User’s Guide 31
4 From the Protocol tab, select the ISDN connection protocol that
you want to use (it must match the protocol on the receiving
system). Follow the guidelines below.
Protocol Guidelines:


For most connections, the default Multilink PPP is used. If it
is not supported, use PPP (for single B-channel connections),
V.120, or V.110 (International Firmware only).


Both PPP and Multilink PPP require that a PPP
communications stack be installed on your computer.
Notes:


For security purposes, Multilink PPP does not support the
callback feature used by some servers.


When using Multilink PPP for incoming calls, only SPAP or
PAP authentication are supported.


(Windows NT only) If you want to support incoming calls
with Windows NT RAS Server, you must enable the parameter
“Allow clear text authentication” in the RAS Server setup.
Refer to the RAS online help for more information.