User guide

Dynamix DW-E
124
PSTN to SIP Cause Code Mapping
PSTN
Cause
Code
Description SIP Event
1 Unallocated numbe
r
404 Not found
2 No route to specified transit networ
k
404 Not found
3 No route to destination 404 Not found
17 User bus
y
486 User here
18 No user response
19 No answer from the use
r
20 Subscriber absent
480 Temporarily
unavailable
21 Call Re
j
ected 403 Forbidden
22 Number chan
g
ed 410 Gone
26 Non-selected user clearin
g
404 Not found
27 Destination out of orde
r
404 Not found
28 Address incomplete 484 Address
incomplete
29 Facility rejected
501 Not
implemented
31 Normal, uns
p
ecified 404 Not found
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 calls barred within Closed User
Group(CUG)
403 Forbidden
58 Bearer capabilit
y
not presentl
y
available 403 Forbidden
65 Bearer capability not implemented 501 Not
im
p
lemented
79 Service or option not implemented 501 Not
im
p
lemented
87 User not member of Closed User Group
(
CUG
)
503 Service
Unavailable
88 Incompatible destination 400 Bad reques
t
95 Invalid messa
g
e 400 Bad re
q
ues
t
102 Recovery on Expires timeout
408 Request
timeout
111 Protocol erro
r
400 Bad reques
t
Any code other than those listed above: 500 Internal server
erro
r