Manual

4 – Appendices NET SatisFAXtion 8.7 Manual 179
4.1.8 28439: SIP 400 Messages
These are error codes returned by the media gateway or fax service. The sec-
ond number listed is the equivalent standard SIP code. Error type:
NON_RETRYABLE.
28416 400 Bad request. Error type: NON_RETRYABLE.
28417 401 Unauthorized. Error type: NON_RETRYABLE.
28418 402 Payment required. Error type: NON_RETRYABLE.
28419 403 Forbidden. Error type: NON_RETRYABLE.
28420 404 Not found: The gateway rejected the initial INVITE with a gener-
ic “404 Not found,” and did not include an additional Q.850 cause code. This
could be because no SIP route could be found for the destination phone num-
ber. Error type: NON_RETRYABLE.
28421 405 Method not allowed. Error type: NON_RETRYABLE.
28422 406 Not acceptable. Error type: NON_RETRYABLE.
28423 407 Proxy authentication required. A username and password are
required to communicate with the gateway. Run Re-Detect Fax Devices and
configure a proxy username and password. Error type: NON_RETRYABLE.
28424 408 Request timeout. Error type: NON_RETRYABLE.
28426 410 Gone. Error type: NON_RETRYABLE.
28429 413 Request entity too large. Error type: NON_RETRYABLE.
28430 414 Request-URI too long. Error type: NON_RETRYABLE.
28431 415 Unsupported media type. The media gateway does not support
G.711 µ-law or does not support T.38. Error type: NON_RETRYABLE.
28432 416 Unsupported URI scheme. Error type: NON_RETRYABLE.
28436 420 Bad extension. Error type: NON_RETRYABLE.
28437 421 Extension required. Error type: NON_RETRYABLE.
28439 423 Interval too brief. Error type: NON_RETRYABLE.
28496 480 Temporarily Unavailable: The gateway rejected the initial IN-
VITE with a generic “480 Temporarily unavailable” and did not include an addi-
tional Q.850 cause code. Error type: BUSY.
28497 481 Call or transaction does not exist. Error type: NON_RETRYABLE.
28498 482 Loop detected. Error type: NON_RETRYABLE.
28499 483 Too many hops. Error type: NON_RETRYABLE.
28500 484 Address incomplete. Error type: NON_RETRYABLE.
28501 485 Ambiguous. Error type: NON_RETRYABLE.