DIVA T/A ISDN Modem User’s Guide 36
4From 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.
Note: the sample above depicts the International version of the
DIVA T/A Configuration Tool. If you’re using the North American
version the V.110 option is not accessible.
Note: the Enable Always On / Dynamic ISDN (AO/DI) option is only
available if the firmware you are using supports it and you have
subscribed to it with your ISDN Service Provider.
Protocol Guidelines:
• For most connections, Multilink PPP is used (PPP is the
default for International Firmware). If it is not supported, use
PPP (for single B-channel c onnections), V.120, or V.110
(International Firmware only).
• Both PPP and Multilink PPP require that a PPP
communications stack be installed on your computer (for
example, Dial-Up Networking).
Notes:
• To obtain maximum Multilink PPP performance, you need a
PC equipped with a UART 16650 (you might need to install a
fast com port card), which supports COM port speed of 230.4
kbps (versus 115.2 kbps with 16550).