IPC Definitions - January 01, 2012
H04M 11/00 - Definition
This main group covers:
Telephonic communication systems adapted for combination with other electrical systems e.g. combinations with application servers or physical implementation of xDSL-systems.
Attention is drawn to the following places, which may be of interest for search:
Signalling or calling systems not related to signalling or calling in telephonic communications (i.e. not related to the control of telecommunication networks); Order telegraphs; Alarm systems | G08B |
Transmission of digital information | H04L |