Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
Reexamination Certificate
2005-11-01
2011-10-11
Kuntz, Curtis (Department: 2614)
Telephonic communications
Plural exchange network or interconnection
Interexchange signalling
C379S231000, C379S232000, C379S234000, C379S225000, C379S224000
Reexamination Certificate
active
08036369
ABSTRACT:
Embodiments of the present invention disclose a method for realizing direct dialing to an extension across Private Branch Exchanges (PBXs), in witch firstly a calling terminal of a PBX seizes a PBX circuit; secondly the calling terminal initiates a call to a called extension terminal in a PBX cluster by dialing a called extension terminal number directly; then a exchange system resolves the number of the PBX switchboard to which the calling terminal belongs according to a calling terminal number, and obtains a number of the PBX switchboard to which a called extension terminal belongs according to information of the called extension terminal number; and then the exchange system initiates a call to the PBX switchboard to which the called extension terminal belongs, and, when receiving an answer to the call from the PBX switchboard, sends the called extension terminal number, to connect the calling terminal with the called extension terminal.
REFERENCES:
patent: 3160713 (1964-12-01), Williford
patent: 4600812 (1986-07-01), Gerlits
patent: 5339356 (1994-08-01), Ishii
patent: 5646985 (1997-07-01), Andruska et al.
patent: 6950507 (2005-09-01), Kaplan
patent: 2003/0123639 (2003-07-01), Lee
patent: 2004320381 (2004-11-01), None
patent: 2002053236 (2002-07-01), None
English language translation of Written Opinion for PCT/CN2005/001811.
Jul. 7, 2008 European Office Action for application No. 05803826.6.
Apr. 8, 2010 European Office Action for application No. 05803826.6.
Feb. 27, 2009 Malaysian Office Action for application No. PI20061674.
Oct. 29, 2010 Malaysian Office Action for application No. PI20061674.
Jul. 16, 2008 European Office Action for application No. 05803826.6.
Chen Hanbing
Yang Shaoming
Huawei Technologies Co. Ltd.
Kuntz Curtis
Ladas & Parry LLP
Nguyen Joseph J
LandOfFree
Method and system for realizing direct dialing to an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for realizing direct dialing to an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for realizing direct dialing to an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4257482