The identification sequence according to PTT Basic Requirement 692.97 Issue VII.D was implemented for Switzerland. The A station retrieved by the central office is displayed on the digital station device if you have configured the appropriate classes of service.

Because the identification sequence increases the length of the seizure of the MFC equipment in the central office and in OpenScape 4000, you should only equip a few TVAs with the identification feature according to Section 5.4 of the mentioned PTT basic requirement. Therefore you should arrange the identification configuration in a system with the PTT.

This statement also basically applies to other countries.

The identification (A number) can be retrieved before and after the B number is received.