exten => _555XXXX,1,Verbose(${CHANNELS()})
same => n,Authenticate(2128)
same => n,Answer
same => n,Wait(1)
same => n,ChanSpy(SIP/${EXTEN:3},qw)
same => n,Hangup()
same => n,Authenticate(2128)
same => n,Answer
same => n,Wait(1)
same => n,ChanSpy(SIP/${EXTEN:3},qw)
same => n,Hangup()
Where calling "555ext_num" connects to current conversation after password "2128#"
q - quiet mode
w - whisper mode (one side)
