Abrahams, John R.
Centrex or PBX the impact of IP / [electronic resource] : John R. Abrahams, Mauro Lollo. - Boston : Artech House, c2003. - xvi, 161 p. : ill., map. - Artech House telecommunications library . - Artech House telecommunications library. .
Includes bibliographical references and index.
Electronic reproduction.
Palo Alto, Calif. :
ebrary,
2009.
Available via World Wide Web.
Access may be limited to ebrary affiliated libraries.
GBA3-Z6393
Internet telephony.
Centrex telephone service.
Electronic books.
TK5105.8865 / .A27 2003eb
621.382/12
Centrex or PBX the impact of IP / [electronic resource] : John R. Abrahams, Mauro Lollo. - Boston : Artech House, c2003. - xvi, 161 p. : ill., map. - Artech House telecommunications library . - Artech House telecommunications library. .
Includes bibliographical references and index.
Electronic reproduction.
Palo Alto, Calif. :
ebrary,
2009.
Available via World Wide Web.
Access may be limited to ebrary affiliated libraries.
GBA3-Z6393
Internet telephony.
Centrex telephone service.
Electronic books.
TK5105.8865 / .A27 2003eb
621.382/12