
Dialogic
®
Diva
®
SIPcontrol
TM
Software 2.5 Reference Guide
Page 84
Microsoft
®
Office Communications Server 2007 and Lync Server 2010 ISDN Cause Code to SIP
Response Code
ISDN cause code Description SIP response code
forwarded to Microsoft
®
Office Communications
Server 2007 or Lync Server
2010
Description
1 Unallocated number 404 Not found
2 No route to specified transit network 404 Not found
3 No route to destination 404 Not found
16 Normal call clearing 603 Decline (The PBX of Philips sends this
code during call set-up if the user
rejects the call.)
17 User busy 486 Busy here
18 No user response 408 Request timeout
19 No answer from the user 480 Temporarily unavailable
20 Subscriber absent 480 Temporarily unavailable
21 Call rejected 603 Decline
22 Number changed 410 Gone
23 Redirection to new destination 410 Gone
26 Non-selected user clearing 404 Not found
27 Destination out of order 502 Bad gateway
28 Address incomplete 484 Address incomplete
29 Facility rejected 501 Not implemented
31 Normal, unspecified 480 Temporarily unavailable
34 No circuit available 503 Service unavailable
38 Network out of order 503 Service unavailable
41 Temporary failure 503 Service unavailable
42 Switching equipment congestion 503 Service unavailable
47 Resource unavailable 503 Service unavailable
55 Incoming class barred within Closed
User Group (CUG)
403 Forbidden
57 Bearer capability not authorized 403 Forbidden
58 Bearer capability not presently
available
503 Service unavailable
65 Bearer capability not implemented 488 Not acceptable here
69 Requested Facility not implemented 501 Not implemented
70 Only restricted digital available 488 Not acceptable here
79 Service or option not implemented 501 Not implemented
87 User not member of Closed User
Group (CUG)
403 Forbidden
88 Incompatible destination 400 Bad request
102 Recover on Expires timeout 504 Server time-out
111 Protocol error 503 Service unavailable
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