* Note: In the absence of explicit handling for the 'initiator' and 'responder' attributes (for example, as described in &xep0251;), a Jingle application MAY simply ignore these attributes if their values are different from the 'from' and 'to' attributes of the session-initiate message. For further descriptions of the 'initiator' and 'responder' attributes, see also the definitions of the session-accept and session-accept actions respectively.
+* Note: In the absence of explicit handling for the 'initiator' and 'responder' attributes (for example, as described in &xep0251;), a Jingle application MAY simply ignore these attributes if their values are different from the 'from' and 'to' attributes of the session-initiate message. For further descriptions of the 'initiator' and 'responder' attributes, see also the definitions of the session-initiate and session-accept actions respectively.
The value of the 'action' attribute MUST be one of the following. If an entity receives a value not defined here, it MUST ignore the attribute and MUST return a &badrequest; error to the sender. There is no default value for the 'action' attribute.