忙线用户呼叫完成
Completion of Calls to Busy Subscriber
被叫用户线路状况的信号
called-paryt’s-line-condition signal
被叫用户线路状况的讯号
signal
called-party’s-line-condition
数字用户线接口电路
digital subscriber line interface circuit
数字用户线接入复用器
DSLAM
aerobic bacterial culture
DSL access multiplexer
ip-dslam
数字用户线接入复用器(DSLAM)
digital subscriber line access multiplexer
数字用户线接入复用器DSL接入复用器
DSIDSL access multiplexer
DSDDSL access multiplexer
用户忙线时的呼叫转接
call forwarding on mobile subscriber busy
用户线接口电路
ZIPSubscriber Line Interface Circuit
Zobel filtersSubscriber Line Interface Circuit
用户线接口控制器
SLIC:Subscriber Line Interface Controller
用户用户业务主持人运营商
UserApplicatorEmceeOperator