BusinessPhone Communication Platform 4.0
Facilities

## Poland – Test Call

## Definition/Use

This feature is used for test call handling by the Polish PSTN to check the speech (B-) channels of external lines.

The primary usage is in conjunction with CAS trunks but it is also possible to be used for other types of trunks.

## Operation

The test call is initiated by the PSTN by direct dialling in, either decadic or MFC. The dialled digits are related to a specific ‘extension number’ which in turn starts the test call sequence.

The test sequence is predefined:

- Ring tone is sent during predefined time (approx. 8 sec.) and then speech connection is established to PSTN.
- Test tone with predefined frequency (800 Hz) and cadencies is sent to the PSTN (3 cycles of 2,5 sec. on and 2,5 sec. off at a level of -6 dBm0).
- The connection is released by ASB 150 02.

## Capacity/Limitations

This test can be used in all automatic incoming call cases. Used register signalling can be e.g. decadic, DTMF and MFC. Related trunks can be analogue, CAS and ISDN.

One 1-4 digit test call number is available (see command 5414).

## Programming

The following commands are only accessable via BMS/RASC:

2649 |  | Test tone

2601 |  | Tone fragment definition

5414 |  | Create test call numbers

5514 |  | Delete test call numbers

5622 |  | Alter test call numbers

## Equipment

A BTU-D card with CAS prom set is necessary to perform the test.

Revision: B © Ericsson Enterprise 2003