Claims
- 1. A system for providing signaling messages to an ISDN capable switch in a telecommunications network, said signaling messages containing information for routing ISDN calls connected to said switch from a plurality of customers served by said switch to desired destinations, said system comprising
- a D-channel controller within said network;
- means for transmitting non-facility associated signaling messages to said D-channel controller via a first set of paths, said signaling messages originating from a plurality of customer locations different from the location of said D-channel controller,
- means for connecting said ISDN calls to said switch via a second set of paths different from said first set of paths, and
- means in said D-channel controller for formulating and sending to said switch ISDN signaling messages to set up appropriate paths from said switch through said network to route said ISDN calls to said desired destinations.
- 2. The invention defined in claim 1 wherein said signaling messages are derived from call set-up parameters generated by said customers, and said means for transmitting non-facility associated signaling messages includes a processor for formatting said call set-up parameters and a modem for transmitting said parameters to said D-channel controller over a voice grade telephone line.
- 3. A method of providing signaling messages to an ISDN capable switch in a public ISDN telecommunications network, said signaling messages containing routing information for ISDN calls routed to said switch from a plurality of customers served by said switch, said method comprising the steps of
- applying via a first set of connection paths, non-facility associated signaling messages derived from call set-up parameters generated by said customers to a D-channel controller within said public ISDN telecommunications network, said D-channel controller being shared amongst said plurality of customers;
- formulating ISDN signaling messages in said D-channel controller;
- transmitting said ISDN signaling messages to said switch; and
- applying said ISDN calls to said switch via a second set of connection paths different from said first set of connection paths.
- 4. A method for providing ISDN signaling messages to switches in a public telecommunications network, said ISDN signaling messages containing information for routing data calls from a plurality of customers served by said switches to intended destinations, said method comprising the steps of
- transmitting call set-up parameters generated by said customers to a D-channel controller within said public telecommunications network via a dial up data link, said D-channel controller being shared amongst said plurality of customers;
- formulating an ISDN signaling message in said D-channel controller in accordance with information derived from said set-up parameters;
- transmitting said ISDN signaling message from said D-channel controller to said switch via the D-channel in a Primary Rate Interface (PRI) formatted data link; and
- transmitting said data calls from said customers to said switches via a connection different from said dial-up data link.
- 5. The invention defined in claims 1 or 3 wherein said first set of paths include voice grade telephone lines and said second set of paths include T-1 access lines.
Parent Case Info
This is a continuation of application Ser. No. 07/839452 filed Feb. 20, 1992 now U.S. Pat. No. 5,375,124.
US Referenced Citations (8)
Continuations (1)
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Number |
Date |
Country |
Parent |
839452 |
Feb 1992 |
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