[jdev] Re: IM history

Richard Dobson richard at dobson-i.net
Mon Jan 3 08:23:54 CST 2005


> There are other open IM protocols designed around SIP.  See for example 
> RFC3428 and SIMPLE 
> (http://www.ietf.org/html.charters/simple-charter.html).
>
> ICQ and AIM use an AOL proprietary protocol known as OSCAR.
>
> MSN Messenger uses a proprietary protocol known as MSNP.  However, Windows 
> Messenger uses SIMPLE.

Actually Windows Messenger uses both MSNP and SIMPLE depending on who you 
are talking to, some older versions of Windows/MSN Messenger can also use 
RVP which is an old IM protocol used in Exchange 2000.

Richard





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