Failover Based on Telephony Cause Codes

SIP Cause

Description

Q.931 Cause Code

Code

 

 

 

 

 

482

Loop detected

25

 

 

 

484

Address incomplete

28

 

 

 

485

Ambiguous

1

 

 

 

486

Busy here

17

 

 

 

487

Request Cancelled

21

 

 

 

488

Not acceptable here

31

 

 

 

500

Internal server error

41

 

 

 

501

Not implemented

79

 

 

 

502

Bad gateway

38

 

 

 

503

Service unavailable

41

 

 

 

504

Server time-out

102

 

 

 

505

Version not supported

127

 

 

 

513

Message Too Large

127

 

 

 

600

Busy everywhere

17

 

 

 

603

Decline

21

 

 

 

604

Does not exist anywhere

1

 

 

 

606

Not acceptable

31

 

 

 

November 2009

237

Page 237
Image 237
Dialogic 6.2 manual SIP Cause Description, November 237