Session Initiation Protocol (SIP)

3xx Responses - Redirection

Response

Supported

Notes

 

 

 

 

300

Multiple Choices

Yes

 

 

 

 

 

301

Moved Permanently

Yes

 

 

 

 

 

302

Moved Temporarily

Yes

 

 

 

 

305 Use Proxy

No

 

 

 

 

 

380

Alternative Service

No

 

 

 

 

 

4xx Responses - Request Failure

Note

All 4xx responses for which the phone does not provide specific support will be

 

treated the same as 400 Bad Request.

 

 

 

 

 

 

 

 

 

 

 

Response

Supported

Notes

 

 

 

 

 

 

400

Bad Request

Yes

 

 

 

 

 

 

 

401

Unauthorized

Yes

 

 

 

 

 

 

 

402

Payment Required

No

 

 

 

 

 

 

 

403

Forbidden

No

 

 

 

 

 

 

 

404

Not Found

Yes

 

 

 

 

 

 

 

405

Method Not Allowed

Yes

 

 

 

 

 

 

 

406

Not Acceptable

No

 

 

 

 

 

 

 

407

Proxy Authentication Required

Yes

 

 

 

 

 

 

 

408

Request Timeout

No

 

 

 

 

 

 

410 Gone

No

 

 

 

 

 

 

 

413

Request Entity Too Large

No

 

 

 

 

 

 

 

414

Request-URI Too Long

No

 

 

 

 

 

 

 

415

Unsupported Media Type

Yes

 

 

 

 

 

 

416 Unsupported URI Scheme

No

 

 

 

 

 

 

 

420

Bad Extension

No

 

 

 

 

 

 

 

421

Extension Required

No

 

 

 

 

 

 

 

423

Interval Too Brief

No

 

 

 

 

 

 

 

480

Temporarily Unavailable

Yes

 

 

 

 

 

 

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Polycom SIP 2.2.2 manual 3xx Responses Redirection