Call control of a distributed processing communications switching system
First Claim
1. In a communications switching system comprising a plurality of call control processor means and a plurality of communications ports for connection to communication terminals, a method of processing a call comprising:
- responsive to a call on one of said ports, assigning control for said call to any one of said plurality of call control processor means each for determining establishment of connections for calls on any of said ports; and
responsive to said assigning step, determining establishment of connections from said one port for said call by the assigned call control processor means.
3 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for controlling calls in in a distributed processing communications switching system. A call is assigned to any one of a plurality of call control processors. The assigned processor thereafter directs the establishment of communications connections for that call. In the exemplary embodiment, the control of a cellular mobile communications switching system, a high speed data ring is used to communicate among a switching network, the call control processors, and call assignment processors of the system. Advantageously, each of the call control processors can be fully utilized since each may be flexibly assigned to any set of communications ports or terminals. New calls to a terminal which is already on an existing call are assigned to the call control processor assigned to control the existing call. Advantageously, call data for all calls to that terminal are therefore under the control of a single processor.
-
Citations
20 Claims
-
1. In a communications switching system comprising a plurality of call control processor means and a plurality of communications ports for connection to communication terminals, a method of processing a call comprising:
-
responsive to a call on one of said ports, assigning control for said call to any one of said plurality of call control processor means each for determining establishment of connections for calls on any of said ports; and responsive to said assigning step, determining establishment of connections from said one port for said call by the assigned call control processor means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A communications switching system comprising:
-
switching network means, comprising a plurality of communications ports connectable to communications terminals, for setting up communication connections among said ports; a plurality of call control processor means for determining establishment of connections by said switching network means; and means responsive to a call on any one of said ports for assigning said call to any one of said plurality of call control processor means to determine establishment of connections for said call. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
-
20. A communications switching system comprising:
-
switching network means, comprising a plurality of communications ports connectable to a public switched network for setting up connections among said ports; a plurality of call control processor means for determining establishment of connections among said ports by said switching network means; means responsive to a call one of said ports for assigning, independent of said one of said ports for said call, any one of said plurality of call control processor means to control initiation of establishment of connections for said call; a plurality of mobile communications cell sites for communicating over a plurality of radio voice channels with a plurality of mobile communication units; and at least one processor means for assigning a voice channel to a call in response to a request from one of said call control processor means; wherein some of said communications ports of said switching network means are connected to said mobile communications cell sites and others of said ports are connectable to a public switched network; wherein each of said plurality of mobile communications units is identified by one of a plurality of directory numbers of said communications switching system; wherein said switching network means comprises means for receiving call destination data comprising a directory number for an incoming call; and wherein said means responsive to a call for assigning call control processor means comprises at least one processor means for maintaining a record of which call control processor means have been assigned for controlling calls on ones of said plurality of directory numbers of said system, and is responsive to said call destination data for assigning said call to the call control processor means assigned for said directory number if a record for said directory number exists and for assigning said call to any one of said call control processor means if no such record exists.
-
Specification