3.1.5.18.2 a=x-applicationsharing-role attribute

The a=x-applicationsharing-role attribute determines the RDP sharing role of the party.<29>

This attribute SHOULD be present. The party that is sharing MUST set the role to "sharer" and the party that is viewing MUST set the role to "viewer." The following table lists the role for the answer based on the role in the offer.

Offer

Answer

a=x-applicationsharing-role:sharer

a=x-applicationsharing-role:viewer

a=x-applicationsharing-role:viewer

a=x-applicationsharing-role:sharer

If the SDP session contains multiple application sharing m= lines, the (session-id, role) pair SHOULD be unique for each active m= line.

The RDP role-attribute has the following format in ABNF notation, as described in [RFC5234]:

 role-attribute = "a=x-applicationsharing-role:" ( "sharer" | "viewer" ) CRLF