Hi there, I have successful launched Asterisk in a testbed configured with a single Billion (Cologne-chip) based BRI adaptor using ISDN4LINUX and several SIP phones. The problem is that when dialing out, I experience a latency of approximately 2 seconds going Asterisk->World whereas World->Asterisk has no notiable delay -this gives some very interresting telephone calls, which for nostalgics like myself brings memory of Europe-US calls via satelitte where one basically had to say "over" each time the direction changed. Anyway, I have in the archives for this mailling list seen several references to Junghanns and the PBX4KLinux project where it is mentioned that it should be possible to use HFC cards in TE mode based on the Zaptel drivers. Unfortunately a "configuration" example of same keep eluding me, I can find several examples of the setup used in "NT" mode (pretty cool by the way) but only sparsly comments in regards to TE mode (without I4L). Have anyone out there experience in this particular setup and in such case would be kind enough to give me some pointers (-and will it solve my latency problem). Any help would be appreciated. Best regards Jens P. Hansen Scandev.