Planet Technology VIP-2100 User Manual
Page 128
VIP-2100 User
’s manual
- 123 -
SIP to PSTN Cause Code Mapping
IP Event
Description
PSTN Cause
Code
404 Not found
No route to destination
3
486 User here
User busy
17
18
18
480 Temporarily
unavailable
No user response
20
403 Forbidden
Call Rejected
21
410 Gone
Number changed
22
404 Not found
Unallocated number
3
404 Not found
Unallocated number
3
484 Address
incomplete
Address incomplete
28
501 Not
implemented
Service or option not implemented
79
404 Not found
Unallocated number
3
503 Service
unavailable
Service or option unavailable
63
503 Service
unavailable
Service or option unavailable
63
503 Service
unavailable
Service or option unavailable
63
503 Service
unavailable
Service or option unavailable
63
503 Service
unavailable
Service or option unavailable
63
403 Forbidden
Bearer Capability not authorized
21
403 Forbidden
Service or option not implemented
79
501 Not
implemented
Service or option not implemented
79
501 Not
implemented
Service or option not implemented
79
503 Service
Unavailable
Service or option unavailable
63
400 Bad request
Interworking, unspecified
95
400 Bad request
Interworking, unspecified
95
408 Request
timeout
Recovery on Expires timeout
102
400 Bad request
Protocol error
111
500 Internal
server error
Any code other than those listed
above:
127