Google un nedaudz personisko zināšanu:

http://technet.microsoft.com/en-us/library/cc776369.aspx = IPsec

ISDN30 gives you 30 individual 64kbit channels. It is often referred to as an E1 or a 2mbit link (=1920kbit). ISDN30 is just like ISDN2 or ISDN Home, just with alot more channels. ISDN10/20/30 are generally only used by business due to the cost.

You need equipment aswell suitable for your needs. Generally people connect PABX systems and routers to an ISDN30 for voice and data calls.

par SAP, ja tas ir tas pats, ko domāju, tad Maxdb. :)