Richard Dreher

Introduction to SS7; SSP, SCP, STP and SS& Protocol Layers Operation by Lawrence J. Harte,Dave Bowler,Richard Dreher Althos Paperback 1 March 2004 from£18.90 | RRP: ~~£14~~
Signaling System 7 (Ss7) Basics, 3rd Edition by Lawrence J. Harte,Richard Dreher,Dave Bowler Althos Paperback 1 September 2003 from£N/A | RRP: ~~£25~~