| 摘要 |
<p>The TTR of an ATU-C is delayed by S1, and the TTR transmitted to another ATU-R being the communication party is adjusted by S2 by delaying or advancing. Thereby, all the interferences occurring between a TCM-ISDN and an ADSL both of which communicate by using the line having the same characteristics and the same reference signal, and all the interferences occurring between the ADSLs are eliminated.</p> |
