Version 6.2 535 February 2011
SIP User's Manual 8. IP Telephony Capabilities
Reason Value
UNSUPPORTED_URI_SCHEME_416 416
UNKNOWN_RESOURCE_PRIORITY_417 417
BAD_EXTENSION_420 420
EXTENSION_REQUIRED_421 421
SESSION_INTERVAL_TOO_SMALL_422 422
SESSION_INTERVAL_TOO_SMALL_423 423
ANONYMITY_DISALLOWED_433 433
UNAVAILABLE_480 480
TRANSACTION_NOT_EXIST_481 481
LOOP_DETECTED_482 482
TOO_MANY_HOPS_483 483
ADDRESS_INCOMPLETE_484 484
AMBIGUOUS_485 485
BUSY_486 486
REQUEST_TERMINATED_487
NOT_ACCEPTABLE_HERE_488 488
BAD_EVENT_489 489
REQUEST_PENDING_491 491
UNDECIPHERABLE_493 493
SECURITY_AGREEMENT_NEEDED_494 494
SERVER_INTERNAL_ERROR_500 500
NOT_IMPLEMENTED_501 501
BAD_GATEWAY_502 502
SERVICE_UNAVAILABLE_503 503
SERVER_TIME_OUT_504 504
VERSION_NOT_SUPPORTED_505 505
MESSAGE_TOO_LARGE_513 513
PRECONDITION_FAILURE_580 580
BUSY_EVERYWHERE_600 600
DECLINE_603 603
DOES_NOT_EXIST_ANYWHERE_604 604
NOT_ACCEPTABLE_606 606
8.4.9.4.9 Reason (Remote-Party-Id)
These ENUMs are applicable to the Remote-Party-Id header (see Remote-Party-Id).