However, while discussions at IETF were stalled,  Reuters signed the first inter-service provider connectivity agreement on .  This agreement enabled AIM, ICQ and MSN Messenger users to talk with Reuters Messaging counterparts and vice-versa.  Following this, Microsoft, Yahoo! and AOL agreed to a deal in which Microsoft's Live Communications Server 2005 users would also have the possibility to talk to public instant messaging users.  This deal established SIP/SIMPLE as a standard for protocol interoperability  and established a connectivity fee for accessing public instant messaging groups or services.  , Microsoft and Yahoo!