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Found empty available channel 0/2
    -- Accepting overlap call from '39' to '00101901929' on channel 0/2, span 1
Urgent handler
    -- Starting simple switch on 'Zap/2-1'
Urgent handler
Launching 'SetCIDNum'
Launching 'Dial'
Using channel 4
Urgent handler
Urgent handler
    -- Called g2d/0101901929
Urgent handler
Set channel Zap/4-1 to read format SLINR
Set channel Zap/2-1 to write format SLINR
Set channel Zap/4-1 to write format SLINR
Set channel Zap/2-1 to read format SLINR
Urgent handler
Queuing frame from PRI_EVENT_PROCEEDING on channel 0/1 span 2
    -- Zap/4-1 is making progress passing it to Zap/2-1
Urgent handler
Received AST_CONTROL_PROGRESS on Zap/2-1
Dunno what to do with control type 15
Enabled echo cancellation on channel 4
    -- Zap/4-1 answered Zap/2-1
Urgent handler
Set channel Zap/2-1 to read format SLINR
Set channel Zap/4-1 to write format SLINR
Set channel Zap/2-1 to write format SLINR
Set channel Zap/4-1 to read format SLINR
Urgent handler
    -- Attempting native bridge of Zap/2-1 and Zap/4-1
Urgent handler
master: 2, slave: 4, nothingok: 0
Stoping tones on 2/0 talking to 4/0
Stoping tones on 4/0 talking to 2/0
disabled echo cancellation on channel 2
disabled echo cancellation on channel 4
Making 4 slave to master 2 at 0
Added 18 to conference 9/2
Added 16 to conference 9/4
Updated conferencing on 2, with 0 conference users
Updated conferencing on 4, with 0 conference users
Enabled echo cancellation on channel 4

*CLI> Unlinking slave 4 from 2
Removed 18 from conference 9/2
Removed 16 from conference 9/4
Updated conferencing on 2, with 0 conference users
Enabled echo cancellation on channel 2
Echo cancellation already on
Returning from native bridge, channels: Zap/2-1, Zap/4-1
Hanging up channel 'Zap/4-1'
zt_hangup(Zap/4-1)
Set option AUDIO MODE, value: ON(1) on Zap/4-1
Hangup: channel: 4 index = 0, normal = 18, callwait = -1, thirdcall = -1
Urgent handler
Not yet hungup...  Calling hangup once with icause, and clearing call
disabled echo cancellation on channel 4
Set option TDD MODE, value: OFF(0) on Zap/4-1
Updated conferencing on 4, with 0 conference users
Set option AUDIO MODE, value: OFF(0) on Zap/4-1
disabled echo cancellation on channel 4
Urgent handler
    -- Hungup 'Zap/4-1'
Urgent handler
Exiting with DIALSTATUS=ANSWER.
Spawn extension (intern,00101901929,2) exited non-zero on 'Zap/2-1'
Hanging up channel 'Zap/2-1'
zt_hangup(Zap/2-1)
Set option AUDIO MODE, value: ON(1) on Zap/2-1
Hangup: channel: 2 index = 0, normal = 16, callwait = -1, thirdcall = -1
Urgent handler
Not yet hungup...  Calling hangup once with icause, and clearing call
disabled echo cancellation on channel 2
Set option TDD MODE, value: OFF(0) on Zap/2-1
Updated conferencing on 2, with 0 conference users
Set option AUDIO MODE, value: OFF(0) on Zap/2-1
disabled echo cancellation on channel 2
Urgent handler
    -- Hungup 'Zap/2-1'
Urgent handler