macro-trunkdial-failover

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假如我们想拨打大陆电话，我们可以有两个途径。第一个经过HGC的PSTN线路（包月），第二个经ET263打出去，但是一分钟要0.07元人民币。

现在如果包月的HGC PSTN不通，直接转到收费ET263拨打。

拨打HGC PSTN的方式为：0086 + <大陆电话>
拨打ET263的方式为：0 + <大陆电话>

怎样启动这个macro呢？就是用prefix 7。拨到模式是70 + <大陆电话>。

1. [macro-trunkdial-failover]
   
2. exten = s,1,Dial(${ARG1})
   
3. exten = s,n,Gotoif(${LEN(${ARG2})} > 0 ?1-${DIALSTATUS},1:1-out,1)
   
4. exten = 1-CHANUNAVAIL,1,Goto(failover-dial,1)
   
5. exten = 1-CONGESTION,1,Goto(failover-dial,1)
   
6. exten = 1-BUSY,1,Goto(failover-dial,1)
   
7. exten = 1-out,1,Hangup()
   
8. exten = failover-dial,1,Dial(${ARG2})
   
9. 
   
10. 
    
11. [trunk-failover-dial-china]
    
12. exten => _70.,1,Macro(trunkdial-failover,SIP/tw-gw/0086${EXTEN:2},SIP/et263/${EXTEN:1})
    
13. 
    
14. [internal]
    
15. Include => include => trunk-failover-dial-china
    
16. 
    
17. exten => 3001,1,Dial(SIP/3001,,r)
    
18. exten => 3002,1,Dial(SIP/3002,,r)

複製代碼

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For my family memers they are very concern about the charges. As a result, I let them have two prefixes, for instance a number with prefix 9 will charge them 0.07RMB for one minute telephone conversation and prefix 8 is free of charge. In fact I have already created another prefix 7 like the first post. However I believe that they do not like to use because they want to know the actual connect that they are using.

YH