search for: 78956xx

...about it, and I'm not sure. I am going to use it with isdn4linux card. Maybe DDI is called differently in other countries, I'll explain - normally customer gets a few (3 or 8 in Slovakia) MSNs for his ISDN BRI line, for example 7895601 (-03). With DDI 100, customer gets number for example 78956xx and he can assign two digits (100 extensions) as he wants. Telco equipment must be configured to support DDI, otherwise it will not possible to make or recieve calls. PBXs generally supports it, telephones not. Thanks a lot, -- Michal Rybarik 21.sk