Welltech WG5260 V.6.1 User Manual
Page 124

Welltech Computer Co., Ltd.
WellGate 5260 User Guide – V6.1.0
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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
480 Temporarily
unavailable
No user response
20
403 Forbidden
Call Rejected
21
410 Gone
Number changed
22
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
403 Forbidden
Bearer Capability not authorized
21
403 Forbidden
Service or option not implemented
79
501 Not
implemented
Service or option not implemented
79
400 Bad request
Inter-working, 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