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1、Wait(seconds)Thisapplicationwaitsforaspecifiednumberof seconds.，一般用在用户接通之后所有的.conf文件都可以使用#include声明包含另一个.conf文件。使用宏创建extension[globals]PHONE1=Zap/1PHONE2=SIP/6002[macro-oneline]exten=>s,1,Dial(${ARG1},20,t)exten=>s,2,Voicemail(u${MACRO_EXTEN})exten=>s,3,Hangupexten=>s,102,Voicemail(b${MACRO
2、_EXTEN})exten=>s,103,Hangup[local]//下面的${PHONE1}和${PHONE2}就是Macro-online中的${ARG1}exten=>6601,1,Macro(oneline,${PHONE1})exten=>6602,1,Macro(oneline,${PHONE2})section]label=value[section](+)label2=value2Inthiscase,theplussignindicatesthatthesecondsection(withthesamename)isanadditiontothefirst
3、section.Thesecondsectioncanbeinanotherfile(byusingthe#includestatement).Ifthesectionnamereferredtobeforetheplusismissing,theconfigurationfailstoload.asterisk的extension有两种方式被启动，一种是主动拨号，另一种是外界打来的电话Forsomekindsofconnections—suchincomingcallsfromanoutsidetelephoneline—theuserhasnotdialedanexten
4、sion.Inthatcase,Asteriskbehavesasiftheuserhaddialedaspecialextensionnamed"s"(forStart).Asterisklooksforanextension"number" s inthedefinitionofthecontextforthatchannelforinstructionsaboutwhatitshoulddotohandlethecall.PredefinedExtensionNamesAsteriskusessomeextensionnamesforspecialpurposes:·i
5、 :Invalid·s :Start·h :Hangup·t :Timeout·T :AbsoluteTimeout·a :Asteriskextension·o :OperatorReloadingIfyouwanttoreloadthedialplanafterchanges,withoutreloadingallofAsterisk'sconfig,usethe dialplanreload AsteriskCLI command.Eitherconnecttoyourasteriskprocesswith asterisk-r or rasterisk andtype
6、inthecommand,orsendthecommanddirectlywith:asterisk-rx'dialplanreload'Onebigfileorseveralsmall?Withthe #include statementinextensions.conf,otherfilesareincluded.Thiswayyoucansetupasystemwhereextensions.confisthemainfile, users.conf (SEEIMPORTANTNOTEBELOW)containyourlocalusers, serv
7、ices.conf containvariousservices,likeconferencing.Thisway,thedialplanmaybeeasiertomaintain（通过将不同类型的服务和信息放在不同的文件中，然后在extensions.conf中用#incldude命令将它们包含进来，这样便于管理和维护）,dependingonthesizeofyoursetup.The #include statementis not thesameasthe include
