Electronic directory system and method
Electronic surveillance in a public switched telephone network
Emergency telephone communications system
Enhanced communication platform and related communication...
Enhanced communication platform and related communication...
Enhanced communication platform and related communication...
Enhanced communication services and apparatus
Enhanced signaling for terminating resource
Escalation tracking system
Establishing and managing communications over...
Event pre-processing for composing a report
Exchange system having originating call restriction function
Extracting and processing data derived from a common channel sig
Extraction of desired data from flow