Hello Jean et merci pour ton message.
Je viens de faire l'essai avec :

Code:
192.168.1.250>enable
192.168.1.250#configure
192.168.1.250(cfg)#debug context sip-gateway transport detail 1
192.168.1.250(cfg)#debug context sip-gateway signaling detail 1
192.168.1.250(cfg)#debug ccisdn signaling
Par contre je ne vois pas grand chose qui puisse m'aider dans les logs qu'il en ressort, a part qu'on voit bien un Calling party number : 0494445799 :

Code:
192.168.1.250(cfg)#05:33:39  SIP_TR> [STACK] < Stack: INVITE sip:06581392xx@192.168.1.250 SIP/2.0
05:33:39  SIP_SI> [GW GW_SIP] Received INVITE request
05:33:39  SIP_SI> [EP IF_SIP-00a5f7a8 SES 0xa6efb0] < Stack: INVITE <sip:06581392xx@192.168.1.250>
05:33:39  SIP_SI> [EP IF_SIP-00a5f7a8 SES 0xa6efb0]          From:                "0494445799" <sip:0494445799@192.168.1.203                                                                                                                 >
05:33:39  SIP_SI> [EP IF_SIP-00a5f7a8 SES 0xa6efb0]          To:                  <sip:06581392xx@192.168.1.250>
05:33:39  SIP_SI> [EP IF_SIP-00a5f7a8 SES 0xa6efb0]          P-Asserted-Identity:
05:33:39  SIP_TR> [STACK] < Stack: INVITE sip:06581392xx@192.168.1.250 SIP/2.0
05:33:39  ICC   > [IF_ISDN_0] Added endpoint IF_ISDN_0-00cfbe68
05:33:39  ICC   > [IF_ISDN_0] NEW CALL. Allocated Endpoint IF_ISDN_0-00cfbe68
05:33:39  ICC   > [EP IF_ISDN_0-00cfbe68] do not reroute because: service invoked
05:33:39  ICC   > [EP IF_ISDN_0-00cfbe68] AOC-S User << Call Setup
05:33:39  ICC   > [EP IF_ISDN_0-00cfbe68] AOC-D User << Call Setup
05:33:39  ICC   > [EP IF_ISDN_0-00cfbe68] AOC-E User << Call Setup
05:33:39  ICC   > [EP IF_ISDN_0-00cfbe68] >> [080005]
SETUP (DSS1 User)
  [04039090A3]
  Bearer capability : 3.1kHz Audio - CCITT
    circuit mode - 64kBit/s - G.711 A-law
  [1E028583]
  Progress indicator : origination address is non-ISDN
    private network serving remote user - CCITT
  [6C0C408030343934343435363839]
  Calling party number : 0494445799
    subscriber number - unknown numbering plan
    presentation allowed - user provided not screened
  [700B8030363538313339323338]
  Called party number : 06581392xx
    unknown number - unknown numbering plan

05:33:39  ICC   > [EP IF_ISDN_0-00cfbe68] Set state to CALL INITIATED
05:33:39  ICC   > [EP IF_ISDN_0-00cfbe68] State: CALL INITIATED, Event: PEER CONNECTED
05:33:39  ICC   > [EP IF_ISDN_0-00cfbe68] Hold State: IDLE, Hold Event: PEER CONNECTED
05:33:39  SIP_TR> [STACK] < Stack: INVITE sip:06581392xx@192.168.1.250 SIP/2.0
05:33:39  SIP_TR> [STACK] > Stack: SIP/2.0 100 Trying
05:33:39  SIP_TR> [STACK] > Stack: SIP/2.0 100 Trying
05:33:40  ICC   > [IF_ISDN_0] << Message: primitive=38
05:33:40  ICC   > [EP IF_ISDN_0-00cfbe68] << [08000D]
SETUP ACKNOWLEDGEMENT (DSS1 User)
  [180189]
  Channel id : 1 - exclusive
    basic rate interface - is not d-channel - CCITT - b-channel units

05:33:40  ICC   > [EP IF_ISDN_0-00cfbe68] State: CALL INITIATED, Event: TERMINAL MORE INFO IND
05:33:40  ICC   > [EP IF_ISDN_0-00cfbe68] Set state to OVERLAP SENDING
05:33:40  ICC   > [EP IF_ISDN_0-00cfbe68] Sending additional user info ''
05:33:40  ICC   > [IF_ISDN_0] << Message: primitive=43
05:33:40  ICC   > [EP IF_ISDN_0-00cfbe68] << [080002]
CALL PROCEEDING (DSS1 User)
  [180189]
  Channel id : 1 - exclusive
    basic rate interface - is not d-channel - CCITT - b-channel units

05:33:40  ICC   > [EP IF_ISDN_0-00cfbe68] State: OVERLAP SENDING, Event: TERMINAL PROCEEDING IND
05:33:40  ICC   > [EP IF_ISDN_0-00cfbe68] Set state to OUTGOING PROCEEDING
05:33:40  SIP_SI> [EP IF_SIP-00a5f7a8 SES 0xa6efb0] > Stack: 183 Session Progress
05:33:40  SIP_TR> [STACK] > Stack: SIP/2.0 183 Session Progress
05:33:44  ICC   > [IF_ISDN_0] << Message: primitive=31
05:33:44  ICC   > [EP IF_ISDN_0-00cfbe68] << [080001]
ALERTING (DSS1 User)

05:33:44  ICC   > [EP IF_ISDN_0-00cfbe68] State: OUTGOING PROCEEDING, Event: TERMINAL ALERTING IND
05:33:44  ICC   > [EP IF_ISDN_0-00cfbe68] Set state to CALL DELIVERED
05:33:44  SIP_SI> [EP IF_SIP-00a5f7a8 SES 0xa6efb0] > Stack: 180 Ringing
05:33:44  SIP_TR> [STACK] > Stack: SIP/2.0 180 Ringing
05:33:44  SIP_TR> [STACK] < Stack: OPTIONS sip:192.168.1.250 SIP/2.0
05:33:44  SIP_SI> [GW GW_SIP] Received OPTIONS request
05:33:44  SIP_SI> [PR IF_SIP] On Options Received
05:33:44  SIP_SI> [PR IF_SIP] ISipGenericMgr EvRequest handle incoming request
05:33:44  SIP_SI> [PR IF_SIP] ISipGenericMgr EvRequestOptions handle incoming request
05:33:44  SIP_SI> [PR IF_SIP]          OPTIONS
05:33:44  SIP_SI> [PR IF_SIP] > Stack: 200 OK
05:33:44  SIP_TR> [STACK] > Stack: SIP/2.0 200 OK
no debug all
192.168.1.250(cfg)#