Hello asterisk-users, I have solved interconnection between Digium TE405 and Matra PBX. I plug this card to another computer and with the same configuration parameters card now works without problem. First server has 2xPIII/1GHz and 256MB of RAM, Adaptec SCSI adapter and SCSI system disk. I don't know now, what chipset it was, but mainboard was from Supermicro, then I pretend Intel chipset. Now I have this card in the 2x Opteron F 2218, 4GB RAM, mainboard Tyan Thunder h2000M, chipset is ServerWorks. FYI. Sincerely Jan Marek -- Ing. Jan Marek | Nez mi poslete prilohu .doc, .xls University of South Bohemia | nebo .ppt, prectete si, prosim, Academic Computer Centre | WWW stranku uvedenou na poslednim Phone: +420-38-9032080 | radku signatury... http://www.gnu.org/philosophy/no-word-attachments.cs.html