| This interface represents the AllowEvents SIP header, as defined by
RFC3265, this header is
not part of RFC3261.
The AllowEventsHeader includes a list of tokens which indicates the event
packages supported by the client (if sent in a request) or server (if sent
in a response). In other words, a node sending an AllowEventsHeader is
advertising that it can process SUBSCRIBE requests and generate NOTIFY
requests for all of the event packages listed in that header.
Any node implementing one or more event packages SHOULD include an appropriate
AllowEventsHeader indicating all supported events in all methods which
initiate dialogs and their responses (such as INVITE) and OPTIONS responses.
This information is very useful, for example, in allowing user agents to
render particular interface elements appropriately according to whether the
events required to implement the features they represent are supported by
the appropriate nodes.
Note that "Allow-Events" headers MUST NOT be inserted by proxies.
author:
BEA Systems, NIST
version:
1.2 |