Hi Stefan, You're looking for www.etsi.org click "standards on-line" in the left panel then serach in "title and scope" for "NET 3" for basic rate access or "NET 5" for primary rate (make sure to include the spaces). This will return a few documents describing the requirements at the terminal end which should either answer your questions or point you to the right documents. If you search for ISDN you'll get a LOT more documents but it may be tricky to work out which ones you want. Regards, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mike Cornelius Internet: mike@bytethis.com.au Byte This Interactive Phone: +61 2 9310-2157 PO Box 1342 Strawberry Hills FAX: +61 2 9319-3948 NSW 2012 Australia URL: http://www.bytethis.com.au ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of lu01ts@gmx.net Sent: Thursday, 10 August 2000 6:54 AM To: PICLIST@MITVMA.MIT.EDU Subject: [OT]: isdn informations ? Hello picsters, does anyone here know where I could find informations about the encoding of germany isdn - telephone, especially about the D-channel ? -- Best regards, Stefan mailto:lu01ts@gmx.net -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu