# US 5,706,328 A · Automated inbound test facility and method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,706,328 A
- Document ID: US5706328A
- Status: Granted
- Kind: A
- Application number: 08/665,130
- Filed: 1996-06-14
- Granted: 1998-01-06
- Earliest claimed: 1996-06-14
- Assignees: AT&T Corp.
- Inventors: Glenn Stuart Williman
- Web page: https://patentgrep.com/patent/US5706328A

## CPC

- H04M 3/2254: {in networks}
- H04M 3/323: {for the arrangements providing the connection (test connection, test call, call simulation)}
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

A technique is provided for enabling remote testing of a telecommunications service provided by an international gateway switch (12). To accomplish such testing, a test facility (10) associated with the switch includes a DTMF interface (16) for automatically answering an inbound call and for verifying if the caller may access the service for testing purposes. The test facility also includes a signal converter (38) for translating DTMF signals entered during the inbound call to yield an activation sequence of signals for input to the international gateway switch to activate the service offered by the switch for testing purposes.

## Claims

### Claim 1

A method for remotely checking a telecommunications service available to callers, comprising the steps of:
automatically answering an in-bound telephone call initiated to check the service;
receiving, during said inbound telephone call, a first sequence of DTMF signals generated for the purpose of gaining access to the service;
verifying if said first sequence of DTMF signals corresponds to a prescribed access sequence of DTMF signals, and if so, then
prompting the entry of a second sequence of DTMF signals generated to cause the telecommunications service to become active;
receiving and translating said second sequence of DTMF signals into a sequence of activation signals of a format recognized for activating said telecommunication service; and
providing a connection between said call and said telecommunications service so said service is active with respect to said call.

### Claim 2 (depends on 1)

The method according to claim 1 including the step of disconnecting said inbound call following a predetermined interval after automatically answering said call if said first sequence of DTMF signals does not correspond to said prescribed access sequence of DTMF signals.

### Claim 3 (depends on 1)

The method according to claim 1 further including the steps of:
receiving a third sequence of DTMF signals;
verifying if said third sequence of DTMF signals corresponds to a prescribed disconnect sequence of DTMF signals; and if so
disconnecting said inbound call.

### Claim 4 (depends on 1)

The method according to claim 1 wherein the second sequence of DTMF signals are translated so that said sequence of activation signals causes said inbound call to simulate an international telephone call.

### Claim 5

A method for remotely checking a telecommunications service offered by an international gateway switch, comprising the steps of:
automatically answering, at a test facility associated with said switch, an in-bound telephone call initiated at a location remote from said test facility to check the service;
receiving, during said inbound telephone call, a first sequence of DTMF signals generated for the purpose of gaining access to check the service;
verifying at said test facility if said first sequence of DTMF signals corresponds to a prescribed access sequence of DTMF signals, and if so, then
prompting the entry of a second sequence of DTMF signals generated to cause the telecommunications service to become active;
receiving and translating at said test facility said sequence of DTMF signals into a second sequence of signals, including supervisory signals, of a format recognized for activating said telecommunication service; and
providing a connection between said test facility and said international gateway switch to activate said telecommunications service so said service is active with respect to said call.

### Claim 6 (depends on 5)

The method according to claim 5 including the step of disconnecting said inbound call following a predetermined interval after automatically answering said call if said first sequence of DTMF signals does not correspond to said prescribed access sequence of DTMF signals.

### Claim 7 (depends on 5)

The method according to claim 5 further including the steps of:
receiving a third sequence of DTMF signals;
verifying if said third sequence of DTMF signals corresponds to a prescribed disconnect sequence of DTMF signals; and if so
disconnecting said inbound call.

### Claim 8 (depends on 5)

The method according to claim 5 wherein the second sequence of DTMF signals are translated so that said sequence of activation signals causes said inbound call to simulate an international telephone call.