exten => 8000,1,Answer
exten => 8000,n,Wait(2)
exten => 8000,n,Playback(welcome)
;exten => 2301,1,Dial(SIP/2301)
exten => _21XX,1,Dial(SIP/minsk/${EXTEN})
exten => _1XXX,1,Dial(SIP/minsk/${EXTEN})
;exten => 2302,1,Dial(SIP/2302)
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"/etc/asterisk/extensions.conf" 17L, 406C written