User guide

Dynamix DW-E
125
SIP to PSTN Cause Code Mapping
IP Event Description
PSTN Cause
Code
404 Not found No route to destination 3
486 User here User bus
y
17
18
480 Temporarily
unavailable
No user response
20
403 Forbidden Call Re
j
ected 21
410 Gone Number chan
g
ed 22
404 Not found Unallocated numbe
r
3
484 Address
incomplete
Address incomplete 28
501 Not
implemented
Service or option not implemented 79
404 Not found Unallocated numbe
r
3
503 Service
unavailable
Service or option unavailable 63
403 Forbidden Bearer Capabilit
y
not authorized 21
403 Forbidden Service or option not implemented 79
501 Not
implemented
Service or option not implemented 79
400 Bad re
q
ues
t
Inte
r
-workin
g
, uns
p
ecified 95
408 Request timeou
t
Recover
y
on Expires timeout 102
400 Bad re
q
ues
t
Protocol erro
r
111
500 Internal server
erro
r
Any code other than those listed above: 127