送交者: enable 于 2004-12-30, 14:01:57:
回答: Gee, did you know what you were talking about? 由 steven 于 2004-12-30, 04:25:51:
telephone network infrastructure?, has it done by using so called TCP/IP over SONET ? And if such IP package is digitalised and integrated into voice traffic, will it be interference to voice traffic or it just occupies some digital channels?