The invention relates to a telephone system where frequency multiplexed analogue telephone signals and digital data signals are transmitted over a line (3). Incoming calls are announced to the customer installation (2) by a ringing indication signal having an amplitude between 1 and 30 V RMS, ...
A termination module communications line (TM) capable of receiving and transmitting telephone signals and digital data comprises a path (DP, COM, DA, F, LD... E Vanzieleghem,WJA Verbiest 被引量: 0发表: 2007年 SPLITTER FOR ANALOG TELEPHONE NUMBER AND DIGITAL DATA PROBLEM TO BE SOLVED: To...
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Integrated telephone with an xDSL-modem (), comprising a splitter unit () for separating telephone signals received via a telephone line () in a low-frequency band from data signals received in a high-frequency band via the telephone lin... S Haas,S Peleg - WO 被引量: 33发表: 2006年 ...