TELES VoIP Box DSL Series Reference Manual page 136

6 Signaling and routing features
Table 6.2 ISDN cause - SIP response and SIP response - ISDN cause (page 2 of 3)
ISDN cause
3
17
18
19
20
21
22
26
27
28
29
31
34
38
41
42
43
44
47
49
50
55
57
58
63
65
66
69
70
79
VoIPBox DSL / VoIPBox BRI – version 21.0.009
SIP response SIP response
404 402
486 403
480 404
480 405
480 406
403 407
410 408
404 409
404 410
484 411
501 413
404 414
480 415
480 416
480 420
480 421
603 423
480 480
480 481
480 482
503 483
403 484
403 485
480 486
503 487
501 488
503 491
501 493
488 500
501 501
Page 136
ISDN cause
21
57
1
127
127
21
102
41
1
127
127
127
79
127
127
127
127
18
127
127
127
28
1
17
127
127
31
31
41
79