Merci, je désespérais d'avoir une réponse...

Pour les fichiers demandés, c'est un peu plus compliqué que ça car j'utilise Freepbx et du coup j'ai des sip_aditionnal.conf, extensions_aditionnal.conf, etc... en plus des sip.conf extensions.conf, etc...

Bref, je poste les fichiers qui sont je pense les plus intéressant :

sip_additional.conf
----------------------------------------------
[200]
deny=0.0.0.0/0.0.0.0
secret=xxxx
dtmfmode=auto
canreinvite=no
context=from-internal
host=dynamic
trustrpid=yes
sendrpid=no
type=friend
nat=yes
port=5060
qualify=yes
qualifyfreq=60
transport=udp
encryption=no
callgroup=
pickupgroup=
dial=SIP/200
mailbox=200@default
permit=0.0.0.0/0.0.0.0
callerid=device <200>
callcounter=yes
faxdetect=no
cc_monitor_policy=generic

[201]
deny=0.0.0.0/0.0.0.0
secret=xxx
dtmfmode=auto
canreinvite=no
context=from-internal
host=dynamic
trustrpid=yes
sendrpid=no
type=friend
nat=no
port=5060
qualify=yes
qualifyfreq=60
transport=udp
encryption=no
callgroup=21
pickupgroup=21
dial=SIP/201
mailbox=201@default
permit=0.0.0.0/0.0.0.0
callerid=device <201>
callcounter=yes
faxdetect=no
cc_monitor_policy=generic

.
.
.
.
---------------------------------------------

Extensions_aditionnal.conf (j'ai mis que le contexte qui me semble être concerné)
---------------------------------------------------
[ext-local]
include => ext-local-custom
exten => *84200,1,Goto(app-campon-toggle,*84,1)
exten => *84200,hint,ccss:SIP/200
exten => *84201,1,Goto(app-campon-toggle,*84,1)
exten => *84201,hint,ccss:SIP/201
exten => *84202,1,Goto(app-campon-toggle,*84,1)
exten => *84202,hint,ccss:SIP/202
exten => *84203,1,Goto(app-campon-toggle,*84,1)
exten => *84203,hint,ccss:SIP/203
exten => *84204,1,Goto(app-campon-toggle,*84,1)
exten => *84204,hint,ccss:SIP/204
exten => *84205,1,Goto(app-campon-toggle,*84,1)
exten => *84205,hint,ccss:SIP/205
exten => *84206,1,Goto(app-campon-toggle,*84,1)
exten => *84206,hint,ccss:SIP/206
exten => *84207,1,Goto(app-campon-toggle,*84,1)
exten => *84207,hint,ccss:SIP/207
exten => *84208,1,Goto(app-campon-toggle,*84,1)
exten => *84208,hint,ccss:SIP/208
exten => *84209,1,Goto(app-campon-toggle,*84,1)
exten => *84209,hint,ccss:SIP/209
exten => *84210,1,Goto(app-campon-toggle,*84,1)
exten => *84210,hint,ccss:SIP/210
exten => *84211,1,Goto(app-campon-toggle,*84,1)
exten => *84211,hint,ccss:SIP/211
exten => *84212,1,Goto(app-campon-toggle,*84,1)
exten => *84212,hint,ccss:SIP/212
exten => *84220,1,Goto(app-campon-toggle,*84,1)
exten => *84220,hint,ccss:SIP/220
exten => 200,1,ExecIf($[${DB(AMPUSER/200/ringtimer)} > 0]?Set(__RINGTIMER=${DB(AMPUSER/200/ringtimer)}))
exten => 200,n,Macro(exten-vm,200,200,0,0,0)
exten => 200,n,Set(__PICKUPMARK=)
exten => 200,n,Goto(vmret,1)
exten => 200,hint,SIP/200
exten => ${VM_PREFIX}200,1,Macro(vm,200,DIRECTDIAL,${IVR_RE TVM})
exten => ${VM_PREFIX}200,n,Goto(vmret,1)
exten => vmb200,1,Macro(vm,200,BUSY,${IVR_RETVM})
exten => vmb200,n,Goto(vmret,1)
exten => vmu200,1,Macro(vm,200,NOANSWER,${IVR_RETVM})
exten => vmu200,n,Goto(vmret,1)
exten => vms200,1,Macro(vm,200,NOMESSAGE,${IVR_RETVM})
exten => vms200,n,Goto(vmret,1)
exten => Standard,1,Goto(from-internal,200,1)
exten => 201,1,ExecIf($[${DB(AMPUSER/201/ringtimer)} > 0]?Set(__RINGTIMER=${DB(AMPUSER/201/ringtimer)}))
exten => 201,n,Macro(exten-vm,201,201,0,0,0)
exten => 201,n,Set(__PICKUPMARK=)
exten => 201,n,Goto(vmret,1)
exten => 201,hint,SIP/201
exten => ${VM_PREFIX}201,1,Macro(vm,201,DIRECTDIAL,${IVR_RE TVM})
exten => ${VM_PREFIX}201,n,Goto(vmret,1)
exten => vmb201,1,Macro(vm,201,BUSY,${IVR_RETVM})
exten => vmb201,n,Goto(vmret,1)
exten => vmu201,1,Macro(vm,201,NOANSWER,${IVR_RETVM})
exten => vmu201,n,Goto(vmret,1)
exten => vms201,1,Macro(vm,201,NOMESSAGE,${IVR_RETVM})
exten => vms201,n,Goto(vmret,1)
exten => Emmanuelle,1,Goto(from-internal,201,1)
.
.
.
.

-------------------------------------------------------

Le firmware est le V2.77

Pour info, j'ai bien la lumière de ma touche qui clignote vert mais je peux rien faire avec...

Merci