[asterisk-users] precision of wait dialplan application

[Johann Steinwendtner]

Hello !

In order to chase after a problem I implemented the following dialplan to have an
answertime of exactly one minute:

exten => xxxxxxxxxxx,1,NoOp(Test wait)
exten => xxxxxxxxxxx,n,Answer
exten => xxxxxxxxxxx,n,NoOp(Current timestamp: ${STRFTIME(${EPOCH},,%C%y%m%d%H%M%S)})
exten => xxxxxxxxxxx,n,Wait(60)
exten => xxxxxxxxxxx,n,NoOp(Current timestamp: ${STRFTIME(${EPOCH},,%C%y%m%d%H%M%S)})
exten => xxxxxxxxxxx,n,Hangup

But it seems the Wait(60) lasts longer than 60 seconds:

     -- Executing [xxxxxxxxxxx at from_meridian:1] NoOp("DAHDI/29-1", "Test wait") in new stack
     -- Executing [xxxxxxxxxxx at from_meridian:2] Answer("DAHDI/29-1", "") in new stack
     -- Executing [xxxxxxxxxxx at from_meridian:3] NoOp("DAHDI/29-1", "Current timestamp: 20090506135813") in new stack
     -- Executing [xxxxxxxxxxx at from_meridian:4] Wait("DAHDI/29-1", "60") in new stack
     -- Executing [xxxxxxxxxxx at from_meridian:5] NoOp("DAHDI/29-1", "Current timestamp: 20090506135915") in new stack
     -- Executing [xxxxxxxxxxx at from_meridian:6] Hangup("DAHDI/29-1", "") in new stack

What is wrong in this example ?

Regards

Hans