| 摘要 |
Radio access communications system in the fixed subscriber loop (CEB, EB, ATR) providing access for a set of subscriber terminals (TE) to a fixed telephone network (RTF). This communications system establishes an audio channel link, in addition to that for signalling, over which pass, as information in the voice band, the tone signals associated with the call control signals pertaining to the fixed telephone network (RTF) and the dialling signals generated by the subscriber terminals (TE) for calls made by said subscriber terminals (TE) towards said fixed telephone network (RTF). The communications system supports the call control functions corresponding to the fixed telephone network (RTF) and the two-wire subscriber interface control functions of the subscriber terminals (TE). |
