Patents-Review.com
ClassID:

231607 ⎘

H04Q2213/13286 - CPC Classification

Classification description:

Indexing scheme relating to selecting arrangements in general and for multiplex systems Direct in-dialling in PBX, DDI

Recent Application in this class:
#1
20200258619
2020-08-13

Nurse call system

 #2
20170055047
2017-02-23

Operating a network node

 #3
20120300919
2012-11-29

Telephone exchange system, dial-in incoming call method thereof, and dial-in incoming call program thereof

 #4
20110286385
2011-11-24

Methods and Systems for Communications

 #5
20100220714
2010-09-02

Method and system for managing internal and external calls for a group of communication clients sharing a common customer identifier

 #6
20080205615
2008-08-28

Method for Providing Caller Identification Service and System of Enabling the Method

 #7
20080075266
2008-03-27

Method and system for realizing direct dialing to an extension across PBXs

 #8
20070217437
2007-09-20

Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery

 #9
20070130270
2007-06-07

SYSTEMS AND METHOD FOR STORING, DELIVERING, AND MANAGING MESSAGES

 #10
20070130269
2007-06-07

SYSTEMS AND METHOD FOR STORING, DELIVERING, AND MANAGING MESSAGES

 #11
20070088808
2007-04-19

SYSTEMS AND METHOD FOR STORING, DELIVERING, AND MANAGING MESSAGES

 #12
20070083656
2007-04-12

Systems and methods for storing, delivering, and managing messages

 #13
20070083614
2007-04-12

Systems and method for storing, delivering, and managing messages

 #14
20070081457
2007-04-12

Systems and method for storing, delivering, and managing messages

 #15
20060092917
2006-05-04

SIP enabled device identification

 #16
20050050349
2005-03-03

Systems and methods for storing, delivering, and managing messages