User`s guide

144 Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide
Parameter Reference
Table 9 lists the supported ISDN Cause Codes.
Table 9. SIP to ISDN Mapping
ISDN Cause Codes
1 0x1 Unassigned Number
2 0x2 No Route to Specified Transit Network
3 0x3 No Route to Destination
6 0x6 Channel is Unacceptable
7 0x7 Call Awarded and Being Delivered in an Established Channel
16 0x10 Normal Call Clearing
17 0x11 User Busy
18 0x12 No User Responding
19 0x13 No Answer From User - User Alerted
20 0x14 Subscriber Absent
21 0x15 Call Rejected
22 0x16 Number Changed
23 0x17 Redirection to New Destination
25 0x19 Exchange - Routing Error
26 0x1A Non-Selected User Clearing
27 0x1B Designation Out of Order
28 0x1C Invalid Number Format
29 0x1D Facility Rejected
31 0x1F Normal Unspecified
34 0x22 No Circuit/Channel Available
38 0x26 Network Out of Order
41 0x29 Temporary Failure
42 0x2A Switching Equipment Congestion
43 0x2B Access Information Discarded
44 0x2C Requested Channel/Circuit Not Available
47 0x2F Resource Unavailable, Unspecified
55 0x37 Incoming Called Barred Within CUG
57 0x39 Bearer Capability Not Authorized
58 0x3A Bearer Capability Not Presently Available
63 0x3F Service Unavailable
65 0x41 Bearer Capability Not Implemented
66 0x42 Channel Type Not Implemented
69 0x45 Requested Facility Not Implemented