
Cause Code Mapping
Page 81
CHAPTER 11
Cause Code Mapping
If Diva SIPcontrol uses Microsoft
®
Office Communications Server 2007 or Lync Server 2010 as a SIP peer, the
cause/response code tables are used as specified by Microsoft. See Default Cause Code Mapping for Microsoft®
Office Communications Server 2007 and Lync Server 2010 Peers on page 83 for a detailed list of cause/response
codes.
If Diva SIPcontrol does not use Microsoft
®
Office Communications Server 2007 or Lync Server 2010, the default
cause/response code mapping is used. See Default Cause Code Mapping below for a detailed list of
cause/response codes.
Default Cause Code Mapping
Diva SIPcontrol includes a default cause/response code mapping table that includes the most common cause
codes according to RFC 3398 and RFC 4497. If you need to define a cause code mapping other than in the table,
you can configure it in the Cause Code Maps section.
For ISDN to SIP code mappings, see ISDN
Cause Code to SIP Response Code, below.
For SIP to ISDN code mappings, see SIP Response Code to ISDN Cause Code on page 82.
ISDN Cause Code to SIP Response Code
ISDN cause
code
Description SIP response code
forwarded to the
SIP peer
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 603 Decline (The PBX of Philips sends this code
during call set-up if the user rejects the
call.)
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
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