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Callback-Number  AVP ( 19 )

The Callback-Number AVP contains a dialing string to be used for callback. It MAY be used in an authentication and/or authorization request as a hint to the server that a Callback service is desired, but the server is not required to honor the hint in the corresponding response.
Reference: RFC 7155   View

Type:

  UTF8String

Mandatory Bit:

  MUST

Protection Bit:

  MAY

Vendor ID:

  0

Value Length:

  0 .. *


Containing Messages
Diameter-EAP-Request
Diameter-EAP-Answer
AA-Request NASREQ
AA-Answer NASREQ
Accounting-Request NASREQ