<HTML><BODY>Hi<br><br>I need to implement SS7 HSL (Q.703, 1996, Annex A), using DAHDI to access E1.<br>A conventional user-space interface provides access to timeslots, while I need to reach data stream from timeslots 1..31sequentially as being transmitted.<br><br>It would be nice to access raw data, thus I can implement HDLC stuff (bit stuffing, CRC etc) in userspace.<br><br>Please advice on:<br>1. needed way of building DAHDI driver<br>2. user space interface to read/write content of timeslots 1..31 sequentially, without splitting them by dahdi_chan<br><br>Examples are highly appreciated<br><br><br>Thank you,<br><br>Dmitry Soloviev<br><br><br><br></BODY></HTML>