Mediant 2000 SIP User’s Manual

 

 

I. Release Reason Mapping

 

 

Table I-2: Mapping of SIP Response to ISDN Release Reason

 

 

 

 

 

 

 

 

SIP

 

Description

 

ISDN Release

 

Description

 

Response

 

 

Reason

 

 

 

 

 

 

 

 

*

 

Bad request

31

 

Normal, unspecified

400

 

 

401

 

Unauthorized

21

 

Call rejected

402

 

Payment required

21

 

Call rejected

403

 

Forbidden

21

 

Call rejected

404

 

Not found

1

 

Unallocated number

405

 

Method not allowed

63

 

Service/option unavailable

406

 

Not acceptable

79

 

Service/option not implemented

407

 

Proxy authentication required

21

 

Call rejected

408

 

Request timeout

102

 

Recovery on timer expiry

409

 

Conflict

41

 

Temporary failure

410

 

Gone

22

 

Number changed w/o diagnostic

411

 

Length required

127

 

Interworking

413

 

Request entity too long

127

 

Interworking

414

 

Request URI too long

127

 

Interworking

415

 

Unsupported media type

79

 

Service/option not implemented

 

 

 

 

 

 

420

 

Bad extension

127

 

Interworking

480

 

Temporarily unavailable

18

 

No user responding

481*

 

Call leg/transaction doesn’t exist

127

 

Interworking

482*

 

Loop detected

127

 

Interworking

483

 

Too many hops

25

 

Exchange – routing error

484

 

Address incomplete

28

 

Invalid number format

485

 

Ambiguous

1

 

Unallocated number

486

 

Busy here

17

 

User busy

488

 

Not acceptable here

31

 

Normal, unspecified

500

 

Server internal error

41

 

Temporary failure

501

 

Not implemented

38

 

Network out of order

502

 

Bad gateway

38

 

Network out of order

503

 

Service unavailable

41

 

Temporary failure

504

 

Server timeout

102

 

Recovery on timer expiry

505*

 

Version not supported

127

 

Interworking

600

 

Busy everywhere

17

 

User busy

603

 

Decline

21

 

Call rejected

604

 

Does not exist anywhere

1

 

Unallocated number

606*

 

Not acceptable

38

 

Network out of order

*Messages and responses were created since the ‘ISUP to SIP Mapping’ draft doesn’t specify their cause code mapping.

Version 4.4

229

July 2005

Page 229
Image 229
Nortel Networks TP-1610 SIP user manual Table I-2 Mapping of SIP Response to Isdn Release Reason