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    • 1. 发明申请
    • POTS EXTENDER FOR VOICE FALLBACK IN A SUBSCRIBER LINE FIELD OF THE INVENTION
    • POTS扩展器用于订阅行中的语音回退技术领域
    • WO2002079789A1
    • 2002-10-10
    • PCT/US2002/009816
    • 2002-03-28
    • NOKIA CORPORATIONWISSING, JeffreyPEK, JiriMATHEWS, CecilMILASIN, Drasko
    • WISSING, JeffreyPEK, JiriMATHEWS, CecilMILASIN, Drasko
    • G01R31/08
    • H04M3/12H04L12/2898H04L2012/5671H04L2012/6478H04M3/005H04M3/2209H04M7/0057H04M7/121H04M7/124H04M7/128H04M19/00
    • A full services access multiplexer (315) is described. A master digital subscriber line (master DSL) modem (303) is coupled to a conductor pair (309). A POTS extender (301) also is coupled to the conductor pair (309) and may sense the operation of a fallback or other signal on the conductor pair (309). A suppression signal may be transmitted to master DSL modem (303) upon occurrence of the fallback. The suppression signal may travel over a control circuit (305). Traffic over a backplane (307) or other network segment may be uninterrupted to a Integrated Access Device (IAD) (105) by handling signals inbound and outbound to the backplane (307) via packet assembler and disassembler (PAD) (353). PAD (315) may transmit a data stream to vocoder (351) and received a data stream from vocoder (351) for injection onto the backplane (307). The vocoder (351) connects duplexed traffic to the subscriber line interface circuit (SLIC) (311) wherein traffic between the vocoder (351) and the SLIC (311) are in analog formats in or near the audible range of frequencies.
    • 描述了全业务接入复用器(315)。 主数字用户线(主DSL)调制解调器(303)耦合到导体对(309)。 POTS扩展器(301)还耦合到导体对(309),并且可以感测导体对(309)上的回退或其他信号的操作。 在发生回退时,抑制信号可能被发送到主DSL调制解调器(303)。 抑制信号可以在控制电路(305)上移动。 通过经由分组汇编器和拆卸器(PAD)处理到底板(307)的入站和出站的信号,通过背板(307)或其他网段的业务可以不中断到集成接入设备(IAD)(105)。 PAD(315)可以将数据流发送到声码器(351)并从声码器(351)接收用于注入到背板(307)上的数据流。 声码器(351)将双工业务连接到用户线路接口电路(SLIC)(311),其中声码器(351)和SLIC(311)之间的通信量处于或接近可听频率范围内的模拟格式。