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| Diameter SIP Application AVPs |
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9.4. SIP-Server-Assignment-Type AVP
The SIP-Server-Assignment-Type AVP (AVP Code 375) is of type
Enumerated and indicates the type of server update being performed in
a Diameter Server-Assignment-Request (SAR) operation. The following
values are defined:
o NO_ASSIGNMENT (0)
The Diameter client uses this value to request the user profile of
a SIP AOR, without affecting the registration state of that
identity.
o REGISTRATION (1)
First SIP registration of a SIP AOR.
o RE_REGISTRATION (2)
Subsequent SIP registration of a SIP AOR.
o UNREGISTERED_USER (3)
The SIP server has received a SIP request (e.g., SIP INVITE)
addressed for a SIP AOR that is not registered.
o TIMEOUT_DEREGISTRATION (4)
The SIP registration timer of an identity has expired.
o USER_DEREGISTRATION (5)
The SIP server has received a request to deregister a SIP AOR.
o TIMEOUT_DEREGISTRATION_STORE_SERVER_NAME (6)
The SIP registration timer of an identity has expired. The SIP
server keeps the user data stored and requests the Diameter server
to store the SIP server address.
o USER_DEREGISTRATION_STORE_SERVER_NAME (7)
The SIP server has received a user-initiated deregistration
request. The SIP server keeps the user data stored and requests
the Diameter server to store the SIP server address.
o ADMINISTRATIVE_DEREGISTRATION (8)
The SIP server, due to administrative reasons, has deregistered a
SIP AOR.
o AUTHENTICATION_FAILURE (9)
The authentication of a user has failed.
o AUTHENTICATION_TIMEOUT (10)
The authentication timer has expired.
o DEREGISTRATION_TOO_MUCH_DATA (11)
The SIP server has requested user profile information from the
Diameter server and has received a volume of data higher than it
can accept.
