Internal call Work.
But,
When a phone call the server, he is redirect in a queue, and when a agent take the call, there is no sound…
And an normal external call work, so there is no voice only in queue 
sip.conf :
[111]
username=111
type=user
secret=*******
nat=yes
host=dynamic
context=sortant-ovh
language=fr
[112]
username=112
type=user
secret=*******
nat=yes
host=dynamic
context=sortant-ovh
language=fr
[113]
username=113
type=user
secret=*******
nat=yes
host=dynamic
context=sortant-ovh
language=fr
extensions.conf :
[general]
static=yes
writeprotect=no
autofallthrough=yes
clearglobalvars=no
priorityjumping=no
[globals]
CONSOLE=Console/dsp
IAXINFO=guest
TRUNK=Zap/g2
TRUNKMSD=1
[sortant-ovh]
exten => 111,1,Dial(SIP/111,60,tTm(attente),tr)
exten => 111,2,HangUp()
exten => 112,1,Dial(SIP/112,60,tTm(attente),tr)
exten => 112,2,HangUp()
exten => 113,1,Dial(SIP/113,60,tTm(attente),tr)
exten => 113,2,HangUp()
; Sortir avec le trunk. On autorise que les appels sur les 01 > 07 et 09.
;exten => _0[1-7]XXXXXXXX,1,Dial(SIP/${EXTEN}@trunk-ovh)
;exten => _09XXXXXXXX,1,Dial(SIP/${EXTEN}@trunk-ovh)
[ovh-sip]
exten => *****,1,Goto(ivr-voice,s,1)
exten => *****,1,Goto(ivr-voice,s,1)
exten => *****,1,Goto(ivr-voice,s,1)
[ivr-voice]
exten => s,1,Answer()
exten => s,2,Set(TIMEOUT(response)=10)
exten => s,3,Background(IVR-001)
exten => s,4,WaitExten()
exten => 1,1,Queue(technique)
exten => 2,1,Dial(SIP/113,0,tTm(arrive),tr)
exten => _[2-9#],1,Goto(ivr-voice,s,3)
exten => t,1,Goto(ivr-voice,s,3)
queues.conf :
[technique]
musiclass = default
strategy = ringall
member => SIP/111
member => SIP/113