Back to results
US 6,643,359 B2Granted
Data-only telephone service
AssigneeQwest Communications International Inc.
InventorsJohn M. Verbil, Martin R. Marks
Life of this patent
Estimating the term…
Abstract
Data-only telephone service is supported by determining if a call placed from a telephone line, designated as data-only, is to a validated data line. If not, the call is disconnected.
Claims20
A method of providing data-only telephone service comprising:
- receiving a telephone call on a telephone line designated data-only, the telephone call specifying a called number;
- determining if the called number is to a validated data line;
- if the called number is to a validated data line, connecting the received call with the called number;
- and
- if the called number is not to a validated data line, disconnecting the received call.
2 more elements
A system for providing data-only telephone service to a subscriber telephone line comprising:
- a switch connected to the subscriber telephone line, the switch suspending a call received from the subscriber telephone line and generating a message containing a called number from the received call;
- and
- a service control point in communication with the switch, the service control point receiving the generated message and determining that the call is to be disconnected if the called number is not to a validated data line.
A method of providing data-only telephone service comprising:
- receiving a telephone call at a switch servicing a telephone line designated as a data-only line, the received call specifying a called number;
- suspending the received call at the switch;
- forwarding the called number to a service control point;
- determining if the called number is a validated data line at the service control point;
- connecting the received call with the called number if the called number is to a validated data line;
- and
- disconnecting the received call if the called number is not to a validated data line.
4 more elements
Dependencies are inferred from the claim text.