Siemens Gigaset S685 IP Manual page 224

Service (Customer Care)
Status
code
0x407
0x408
0x410
0x413
0x414
0x415
0x416
0x420
0x421
0x423
0x480
0x481
0x482
0x483
0x484
0x485
0x486
0x487
0x488
0x491
0x493
0x500
0x501
222
Meaning
Proxy authentication required.
The party cannot be reached (e.g. account has been deleted).
The requested service is not available from the VoIP provider.
Message is too long.
URI is too long.
Query format is not supported.
URI is faulty.
Incorrect ending
Incorrect ending
The requested service is not supported by the VoIP provider.
The dialled number is temporarily unavailable.
The recipient is not available.
Double service query
Too many "jumps":
The query was rejected because the service server (proxy) has decided that
this query has already passed through too many service servers. The maxi-
mum number is defined beforehand by the original sender of the query.
Wrong number:
In most cases this response means that you have simply omitted one or more
digits in the phone number.
The URI dialled is not unique and cannot be processed by the VoIP provider.
The called party is busy.
General faults:
The call was cancelled before a call was established. The status code confirms
receipt of the interruption signal.
The server cannot process the query because the data entered in the media
description is not compatible.
The server notifies that the query will be processed as soon as a previous
query has been completed.
The server rejects the query because the phone cannot decrypt the message.
The sender has used an encryption method that neither the server nor the
receiver phone can decrypt.
The proxy or the receiving device has discovered a fault while executing the
query. It is therefore impossible to execute the query. If this occurs, the caller
or the phone displays the fault and repeats the query after a few seconds. The
number of seconds after which the query can be repeated may be transmitted
to the caller or phone by the receiving device.
The query cannot be processed by the recipient because the recipient does
not have the functionality that the caller requires. If the recipient understands
the query but does not process it because the sender does not have the nec-
essary rights or the query is not permitted in the current context, status code
405 is transmitted instead of 501.