Operating the Phone
28 T328 Executive IP Phone User Guide (Coral IPx/FlexiCom)
Making Calls
400—499
Failure
The call was not processed successfully and was therfore rejected by the switch.
Try another number.
• 400 Bad request
• 401 Unauthorized : Used only by registrars. Proxys should use proxy authorization 407
• 402 Payment required
• 403 Forbidden
• 404 Not found : User not found
• 405 Method not allowed
• 406 Not acceptable
• 407 Proxy authentication required
• 408 Request time-out : Couldn't find the user in time
• 409 Conflict
• 410 Gone : The user existed once, but is not available here any more.
• 411 Length required
• 413 Request entity too large
• 414 Request-URI too large
• 415 Unsupported media type
• 416 Unsupported URI Scheme
• 420 Bad Extension: Bad SIP Protocol Extension used, not understood by the server
• 421 Extension Required
• 423 Interval Too Brief
Table 6: SIP Phone Response Messages
Status
Code
Response
Type
Description