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Hi All,<br><br>When I tried to write my dial plan as below for my FXO port, which connects one PSTN line:<br><br>[from-pstn]<br>exten =>s,1,Answer()<br>exten =>s,n,Wait(1)<br>exten =>_X.,1,Dial(DAHDI/1)<br>exten =>_X.,n,Hangup<br><br>I got the following message:<br>Connected to Asterisk 1.6.2.13 currently running on fax (pid = 8154)<br>Verbosity was 0 and is now 4<br> -- Starting simple switch on 'DAHDI/1-1'<br> -- Executing [s@from-pstn:1] Answer("DAHDI/1-1", "") in new stack<br> -- Executing [s@from-pstn:2] Wait("DAHDI/1-1", "1") in new stack<br> -- Auto fallthrough, channel 'DAHDI/1-1' status is 'UNKNOWN'<br> -- Hungup 'DAHDI/1-1'<br><br>But if I changed the "_X." to "S" extension, I can get the whole thing to work well:<br>[from-pstn]<br>exten =>s,1,Answer()<br>exten =>s,n,Wait(1)<br>exten =>s,n,Dial(DAHDI/3)<br>exten =>s,n,Hangup<br><br>Would you please let me which casuses this issue?<br><br>Thanks,<br>Songtao Yu                                            </body>
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