A computer-implemented method includes generating at least one call detail record for each call initiated on a communication network, aggregating the call detail records generated over a predetermined time period to provide an aggregated call detail record, and calculating a call set up failure rate for the calls from the aggregated call detail record, wherein the call set up failure rate is a measure of the amount of calls that failed prior to ringing at a called party's device. The computer-implemented method further includes adjusting parameters of the communication network when the call set up failure rate is above a threshold.

To improve accuracy of an evaluation in an acoustic quality evaluation test performed by comparing an evaluation target sound and a reference sound. A data correction apparatus 3 compares, in a call performed between a near-end terminal 1 and a far-end terminal 2, an evaluation target sound in which a voice output from the near-end terminal 1 is recorded and a reference sound in which a voice spoken by a call partner using the far-end terminal 2 to correct test data used in a listening test for evaluating acoustic quality of the call. A correction target determination unit 31 determines, as a correction target section, a voiced section that does not include the voice of the call partner detected from an acoustic signal representing the reference sound. A correction execution unit 32 updates the correction target section of the acoustic signal representing the reference sound with a non-voice signal predetermined.

To improve accuracy of an evaluation in an acoustic quality evaluation test performed by comparing an evaluation target sound and a reference sound. A data correction apparatus 3 compares, in a call performed between a near-end terminal 1 and a far-end terminal 2, an evaluation target sound in which a voice output from the near-end terminal 1 is recorded and a reference sound in which a voice spoken by a call partner using the far-end terminal 2 to correct test data used in a listening test for evaluating acoustic quality of the call. A correction target determination unit 31 determines, as a correction target section, a voiced section that does not include the voice of the call partner detected from an acoustic signal representing the reference sound. A correction execution unit 32 updates the correction target section of the acoustic signal representing the reference sound with a non-voice signal predetermined.

A wireless base station device includes a test request unit that, upon receipt of a line test request from a host station side, transmits an implementation request for a line test to a wireless terminal station device and a test response unit that transmits at least one of a terminal identification code returned from the wireless terminal station device and a terminal identification code and a line test result of the wireless base station device to the host station side. A wireless terminal station device includes a test implementation unit that receives the implementation request for the line test from the wireless base station device, executes the line test between the wireless terminal station device and the subscriber home, and acquires the line test result and a test-signal communication unit that transmits at least one of a terminal identification code returned from a device on the subscriber home side and a terminal identification code and a line test result of the wireless terminal station device to the wireless base station device.

A wireless base station device includes a test request unit that, upon receipt of a line test request from a host station side, transmits an implementation request for a line test to a wireless terminal station device and a test response unit that transmits at least one of a terminal identification code returned from the wireless terminal station device and a terminal identification code and a line test result of the wireless base station device to the host station side. A wireless terminal station device includes a test implementation unit that receives the implementation request for the line test from the wireless base station device, executes the line test between the wireless terminal station device and the subscriber home, and acquires the line test result and a test-signal communication unit that transmits at least one of a terminal identification code returned from a device on the subscriber home side and a terminal identification code and a line test result of the wireless terminal station device to the wireless base station device.

A computer-implemented method includes generating at least one call detail record for each call initiated on a communication network, aggregating the call detail records generated over a predetermined time period to provide an aggregated call detail record, and calculating a call set up failure rate for the calls from the aggregated call detail record, wherein the call set up failure rate is a measure of the amount of calls that failed prior to ringing at a called party's device. The computer-implemented method further includes adjusting parameters of the communication network when the call set up failure rate is above a threshold.

A computer-implemented method includes generating at least one call detail record for each call initiated on a communication network, aggregating the call detail records generated over a predetermined time period to provide an aggregated call detail record, and calculating a call set up failure rate for the calls from the aggregated call detail record, wherein the call set up failure rate is a measure of the amount of calls that failed prior to ringing at a called party's device. The computer-implemented method further includes adjusting parameters of the communication network when the call set up failure rate is above a threshold.

A method of determining the quality of transmitted voice data can include: providing voice data at a transmitter side in a first data format, providing a first test signal in the first data format, combining the voice data and the test signal to form input data, transmitting the input data in a transmittal data format, receiving the transmitted input data at a receiver side to obtain output data, removing at least portions of a data packet in the output data or of a data packet derived therefrom in order to derive a second test signal, and analysing the derived second test signal by applying a predetermined analysis criterion in order to obtain at least one value for a quality indicator. An apparatus and system can also be configured to utilize embodiments of the method.

An aspect of the present disclosure includes methods, systems, and computer-readable media for receiving a beam failure detection reference signal configuration, detecting an absence of a configured and quasi-co-located beam failure detection reference signal in a monitored control resource set (CORESET), and utilizing reference signals indicated in the CORESET transmission configuration indicator state for beam failure detection.

An aspect of the present disclosure includes methods, systems, and computer-readable media for receiving a beam failure detection reference signal configuration, detecting an absence of a configured and quasi-co-located beam failure detection reference signal in a monitored control resource set (CORESET), and utilizing reference signals indicated in the CORESET transmission configuration indicator state for beam failure detection.