Voici une capture qui montre bien que ovh coupe et voici ce qu'ils prétendent on croit rèver.
"je comprend vos remarques cependant les exemples d'appel
fournis ont été coupé par vos équipement.
A chaque appel un BYE a été reçu de votre part.
Pouvez-vous m'indiquer quel problématique a été"
rencontré pour que vos équipements raccrochent ?"
Code:
U 91.121.129.20:5962 -> 192.168.1.17:5060
  BYE sip:0033183626986@89.83.76.95:5060 SIP/2.0..Call-ID: 5b09f43c40a89a3c3
  5abcef71fd7fea4@sip.ovh.fr..CSeq: 17325469 BYE..From: <sip:0148734812@sip.
  ovh.fr>;tag=00-07906-01292f20-47f4a2072..Max-Forwards: 30..Record-Route: <
  sip:91.121.129.20:5962;lr>..To: "400" <sip:0033183626986@sip.ovh.fr>;tag=a
  s25f8dece..Via: SIP/2.0/UDP 91.121.129.20:5962;branch=z9hG4bK-DHGU-05893bd
  8-0ce9ac0e..User-Agent: Cirpack/v4.56 (gw_sip)..Content-Length: 0....     
#
U 192.168.1.17:5060 -> 91.121.129.20:5962
  SIP/2.0 200 OK..Via: SIP/2.0/UDP 91.121.129.20:5962;branch=z9hG4bK-DHGU-05
  893bd8-0ce9ac0e;received=91.121.129.20;rport=5962..Record-Route: <sip:91.1
  21.129.20:5962;lr>..From: <sip:0148734812@sip.ovh.fr>;tag=00-07906-01292f2
  0-47f4a2072..To: "400" <sip:0033183626986@sip.ovh.fr>;tag=as25f8dece..Call
  -ID: 5b09f43c40a89a3c35abcef71fd7fea4@sip.ovh.fr..CSeq: 17325469 BYE..Serv
  er: Asterisk PBX 10.7.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, 
  SUBSCRIBE, NOTIFY, INFO, PUBLISH..Supported: replaces, timer..Content-Leng
  th: 0....                                                                 
#
U 192.168.1.17:5060 -> 192.168.1.6:31884
  BYE sip:400@192.168.1.6:31884 SIP/2.0..Via: SIP/2.0/UDP 192.168.1.17:5060;
  branch=z9hG4bK4e622258;rport..Max-Forwards: 70..From: <sip:0148734812@192.
  168.1.17>;tag=as5e293d32..To: "400" <sip:400@192.168.1.17>;tag=1668140945.
  .Call-ID: 668235232-31884-6@BJC.BGI.B.G..CSeq: 102 BYE..User-Agent: Asteri
  sk PBX 10.7.0..X-Asterisk-HangupCause: Normal Clearing..X-Asterisk-HangupC
  auseCode: 16..Content-Length: 0....                                       
#
U 192.168.1.6:31884 -> 192.168.1.17:5060
  SIP/2.0 200 OK..Via: SIP/2.0/UDP 192.168.1.17:5060;branch=z9hG4bK4e622258;
  rport=5060..From: <sip:0148734812@192.168.1.17>;tag=as5e293d32..To: "400" 
  <sip:400@192.168.1.17>;tag=1668140945..Call-ID: 668235232-31884-6@BJC.BGI.
  B.G..CSeq: 102 BYE..Contact: <sip:400@192.168.1.6:31884>..Supported: repla
  ces, path, timer..User-Agent: Grandstream GXP2140 1.0.0.17..Allow: INVITE,
   ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAG
  E..Content-Length: 0....                                                  
#
#
U 91.121.129.20:5962 -> 192.168.1.17:5060
  OPTIONS sip:0033184230751@89.83.76.95:5060 SIP/2.0..Call-ID: 02-07869-0a88
  204d-18da30f80@91.121.129.20..Contact: <sip:91.121.129.20:5962>..CSeq: 1 O
  PTIONS..From: <sip:keepalive@91.121.129.20:5962>;tag=02-07869-0a88204c-435
  17ea81..Max-Forwards: 70..To: <sip:0033184230751@sip.ovh.fr>..Via: SIP/2.0
  /UDP 91.121.129.20:5962;rport;branch=z9hG4bK-WYKY-05896076-0ca692e0..Conte
  nt-Length: 0....                                                          
#
U 192.168.1.17:5060 -> 91.121.129.20:5962
  SIP/2.0 200 OK..Via: SIP/2.0/UDP 91.121.129.20:5962;branch=z9hG4bK-WYKY-05
  896076-0ca692e0;received=91.121.129.20;rport=5962..From: <sip:keepalive@91
  .121.129.20:5962>;tag=02-07869-0a88204c-43517ea81..To: <sip:0033184230751@
  sip.ovh.fr>;tag=as643d17ed..Call-ID: 02-07869-0a88204d-18da30f80@91.121.12
  9.20..CSeq: 1 OPTIONS..Server: Asterisk PBX 10.7.0..Allow: INVITE, ACK, CA
  NCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH..Supported: re
  places, timer..Contact: <sip:89.83.76.95:5060>..Accept: application/sdp..C
  ontent-Length: 0....                                                      
#
U 91.121.129.20:5962 -> 192.168.1.17:5060
  OPTIONS sip:0033183626986@89.83.76.95:5060 SIP/2.0..Call-ID: 02-07418-0a88
  211f-6d584fd33@91.121.129.20..Contact: <sip:91.121.129.20:5962>..CSeq: 1 O
  PTIONS..From: <sip:keepalive@91.121.129.20:5962>;tag=02-07418-0a88211e-1b0
  487990..Max-Forwards: 70..To: <sip:0033183626986@sip.ovh.fr>..Via: SIP/2.0
  /UDP 91.121.129.20:5962;rport;branch=z9hG4bK-FICW-058960df-4dd4265b..Conte
  nt-Length: 0....                                                          
#
U 192.168.1.17:5060 -> 91.121.129.20:5962
  SIP/2.0 200 OK..Via: SIP/2.0/UDP 91.121.129.20:5962;branch=z9hG4bK-FICW-05
  8960df-4dd4265b;received=91.121.129.20;rport=5962..From: <sip:keepalive@91
  .121.129.20:5962>;tag=02-07418-0a88211e-1b0487990..To: <sip:0033183626986@
  sip.ovh.fr>;tag=as7d037d80..Call-ID: 02-07418-0a88211f-6d584fd33@91.121.12
  9.20..CSeq: 1 OPTIONS..Server: Asterisk PBX 10.7.0..Allow: INVITE, ACK, CA
  NCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH..Supported: re
  places, timer..Contact: <sip:89.83.76.95:5060>..Accept: application/sdp..C
  ontent-Length: 0....                                                      
^Cexit