search for: uyless

...f a good book for learning ISDN and SS7. I don't need to know how to write a channel driver or something; I just want to know more about the possibilities and what's really sent back and forth. I was told the book "ISDN and SS7: Architectures for Digital Signaling Networks" by Uyless Black (ISBN 0132591936) was a good choice, but this seems sold out. Does anyone know about another book about the subject? thanks roy

hi can someone recommend a book about ISDN and SS7? I've been hacking asterisk for a while, but it'd be good to get some better background within things... thanks roy