Thanks for the fast response. That specification only discusses the electrical aspects for the link, I need the timing for Rx and Tx, and handshaking. There is also the V.11 spec, this also pertains but again it is also electrical and not functional.
Get the book "Understanding Telephone Electronics:, Bigelow, for a good tutorial on how things work. This book covers a lot...I have been designing telephone circuits for over 20 years and I learned a lot from this book, I almost carry it with me everywhere I go now!
Does anyone know how the V.35 functional timing works? This is a sync I/F like RS-232 -- but there is no data available to show timing. I am interested in transferring T1 data to a CSU/DSU, and need to understand the link between my box and the CSU/DSU.