[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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