Telephone apparatus with optical indicators

摘要: 1. Telephone set with optical indicating equipments, wherein the telephone number of partner in conversation and additional data concerning kind connection state are indicated by multi-cypher alphanumeric elements information to be is transmitted over subscriber's line, characterized thereby, that a status indication (S) provided, which apart from also indicates authorisation classes, have been switched effective permanently or temporarily, features parther (A B) participating concerted associated own appear (AE) rest set.