Owner Vocera Communications, Inc.

Inventors Shostak, Robert

Agent Pizzeys

Pub. Number AU-B-2002332828

PCT Number PCT/US02/28096

PCT Pub. Number WO2003/021990

Priority 09/947,235 05.09.01 US

Filing date 4 September 2002

Wipo publication date 18 March 2003

Acceptance publication date 4 January 2007

H04M 1/00 (2006.01) Substation equipment, e.g. for use by subscribers

H04L 12/28 (2006.01) Data switching networks - characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]

H04M 1/725 (2006.01) Substation equipment, e.g. for use by subscribers

H04M 3/42 (2006.01) Automatic or semi-automatic exchanges - Systems providing special services or facilities to subscribers

H04M 11/00 (2006.01) Telephonic communication systems specially adapted for combination with other electrical systems

H04Q 7/14 (2006.01)

H04Q 7/38 (2006.01)

H04M 1/27 (2006.01) Substation equipment, e.g. for use by subscribers - Devices whereby a plurality of signals may be stored simultaneously

H04M 1/57 (2006.01) Substation equipment, e.g. for use by subscribers - Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

H04M 1/60 (2006.01) Substation equipment, e.g. for use by subscribers - including speech amplifiers