TY  - BOOK
AU  - Dryburgh,Lee
AU  - Hewett,Jeff
TI  - Signaling System No. 7 (SS7/C7): protocol, architecture and services 
SN  - 1587050404
AV  - TK6397  .D79 2005
PY  - 2005///
CY  - Indianapolis, IN
PB  - Cisco Press
KW  - Telecommunication systems
KW  - Telephone switching systems, Electronic
KW  - Telephone systems
ER  -