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<title>Various sequences in OSCAR protocol</title>
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<td><b><font color="white"> OSCAR sequences </font></b></td>
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<td bgcolor=#f0f0f0 width=30> <b>1. </b> </td>
<td bgcolor=#f0f0f0 width=570> <a href="login.html">Login sequence</a></td>
<td bgcolor=#f0f0f0 width=18 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 width=18 valign=middle align=center><img src="pictures/aim.gif" width=16 height=16 alt="Used in AIM"></td>
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<td bgcolor=#f0f0f0> <b>2.</b> </td>
<td bgcolor=#f0f0f0> <a href="#offline_msgs">Retrieving offline messages sequences</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
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<td bgcolor=#f0f0f0> <b>3.</b> </td>
<td bgcolor=#f0f0f0> <a href="#get_user_info">Retrieving user information sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
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<td bgcolor=#f0f0f0> <b>4.</b> </td>
<td bgcolor=#f0f0f0> <a href="#migration">Client migration sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/aim.gif" width=16 height=16 alt="Used in AIM"></td>
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<td bgcolor=#f0f0f0> <b>5.</b> </td>
<td bgcolor=#f0f0f0> <a href="#registration">New uin registration sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
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<td bgcolor=#f0f0f0> <b>6.</b> </td>
<td bgcolor=#f0f0f0> <a href="#unregistration">Delete user account (unregister) sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
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<td bgcolor=#f0f0f0> <b>7.</b> </td>
<td bgcolor=#f0f0f0> <a href="#evil_request">Send user warning sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/aim.gif" width=16 height=16 alt="Used in AIM"></td>
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<td bgcolor=#f0f0f0> <b>8.</b> </td>
<td bgcolor=#f0f0f0> <a href="#set_user_info">Change user_info sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
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<td bgcolor=#f0f0f0> <b>9.</b> </td>
<td bgcolor=#f0f0f0> <a href="#account_change">AIM change account info sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/aim.gif" width=16 height=16 alt="Used in AIM"></td>
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<td bgcolor=#f0f0f0> <b>10.</b> </td>
<td bgcolor=#f0f0f0> <a href="#verification">Client verification sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/aim.gif" width=16 height=16 alt="Used in AIM"></td>
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<td bgcolor=#f0f0f0> <b>11.</b> </td>
<td bgcolor=#f0f0f0> <a href="icq_search.html">ICQ search user(s) sequences</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
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<td bgcolor=#f0f0f0> <b>12.</b> </td>
<td bgcolor=#f0f0f0> <a href="icq_ssi_auth.html">ICQ SSI authorization sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center> </td>
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<td bgcolor=#f0f0f0> <b>13.</b> </td>
<td bgcolor=#f0f0f0> <a href="service_request.html">Service request sequence</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/aim.gif" width=16 height=16 alt="Used in AIM"></td>
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<td bgcolor=#f0f0f0> <b>14.</b> </td>
<td bgcolor=#f0f0f0> <a href="ssbi_sequence.html">Upload/download server-stored buddy icons (SSBI) sequences</a></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/icq.gif" width=16 height=16 alt="Used in ICQ"></td>
<td bgcolor=#f0f0f0 valign=middle align=center><img src="pictures/aim.gif" width=16 height=16 alt="Used in AIM"></td>
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<td><b><font size=2 color="white"> <a name="offline_msgs"></a> Retrieving offline messages sequence</font></b></td>
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ICQ IM service has ability to save messages were sent to you when you was offline.
ICQ client can request these saved messages (called offline messages) after
<a href="login.html">login sequence</a>. After receiving offline messages client
should ask server to delete them or it will receive them in next request. If there
is no offline messages server sends only
<a href="snac_15_03_0042.html">SNAC(15,03)/0042</a> (without
<a href="snac_15_03_0041.html">SNAC(15,03)/0041</a>)<br><br>
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<table width=100% cellSpacing=2 cellPadding=0 border=0><tr><td bgcolor=#7070D0><b><font size=2 color=white> Retrieving offline messages</font></b></td></tr>
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<td bgcolor=#f9f9f9 width=35 valign=top> <b>>></b></td>
<td bgcolor=#f9f9f9 width=200 valign=top> <b><a href="snac_15_02_003c.html">SNAC(15,02)/003C</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Client sends offline messages request</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_0041.html">SNAC(15,03)/0041</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends message #1</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b>...</b></td>
<td bgcolor=#f9f9f9 valign=top> <b>...</b></td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_0041.html">SNAC(15,03)/0041</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends message #N</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_0042.html">SNAC(15,03)/0042</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends end-of-offline messages snac</td>
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<td bgcolor=#f9f9f9 valign=top> <b>>></b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_02_003e.html">SNAC(15,02)/003E</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Client ask server to delete offline messages</td>
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<table width=640 bgcolor=darkblue cellSpacing=0 cellPadding=0 border=0><tr><td>
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<td><b><font size=2 color="white"> <a name="get_user_info"></a> Retrieving user information sequence</font></b></td>
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ICQ IM service user information is structured and has many fields. These fields
divided into several sections: basic info, work info, more info, about info,
extended email info, interests info, affilations info). There are 3 info requests
client can send to get full or short user information:<br><br>
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<table width=100% cellSpacing=2 cellPadding=0 border=0><tr><td bgcolor=#7070D0><b><font size=2 color=white> Retrieving self full information</font></b></td></tr>
<tr><td bgcolor=#E5E5E5 >
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<td bgcolor=#f9f9f9 width=35 valign=top> <b>>></b></td>
<td bgcolor=#f9f9f9 width=200 valign=top> <b><a href="snac_15_02_07d0_04b2.html">SNAC(15,02)/07D0/04B2</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Client ask server for self full information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00c8.html">SNAC(15,03)/07DA/00C8</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends basic user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00dc.html">SNAC(15,03)/07DA/00DC</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends more user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00eb.html">SNAC(15,03)/07DA/00EB</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends extended email user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_010e.html">SNAC(15,03)/07DA/010E</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends homepage category user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00d2.html">SNAC(15,03)/07DA/00D2</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends work user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00e6.html">SNAC(15,03)/07DA/00E6</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends user about information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00f0.html">SNAC(15,03)/07DA/00F0</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends user interests information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00fa.html">SNAC(15,03)/07DA/00FA</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends user affilations information</td>
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<table width=100% cellSpacing=0 cellPadding=0 align=center border=0>
<tr><td width=20></td>
<td>
<table width=580 bgcolor=darkblue cellSpacing=0 cellPadding=0 border=0><tr><td>
<table width=100% cellSpacing=2 cellPadding=0 border=0><tr><td bgcolor=#7070D0><b><font size=2 color=white> Retrieving full user information (for another user)</font></b></td></tr>
<tr><td bgcolor=#E5E5E5 >
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<td bgcolor=#f9f9f9 width=35 valign=top> <b>>></b></td>
<td bgcolor=#f9f9f9 width=200 valign=top> <b><a href="snac_15_02_07d0_04d0.html">SNAC(15,02)/07D0/04D0</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Client ask server for full user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00c8.html">SNAC(15,03)/07DA/00C8</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends basic user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00dc.html">SNAC(15,03)/07DA/00DC</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends more user information</td>
</tr>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00eb.html">SNAC(15,03)/07DA/00EB</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends extended email user information</td>
</tr>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_010e.html">SNAC(15,03)/07DA/010E</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends homepage category user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00d2.html">SNAC(15,03)/07DA/00D2</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends work user information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00e6.html">SNAC(15,03)/07DA/00E6</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends user about information</td>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00f0.html">SNAC(15,03)/07DA/00F0</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends user interests information</td>
</tr>
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<td bgcolor=#f9f9f9 valign=top> <b><<</b></td>
<td bgcolor=#f9f9f9 valign=top> <b><a href="snac_15_03_07da_00fa.html">SNAC(15,03)/07DA/00FA</a></b></td>
<td bgcolor=#f9f9f9 valign=top> Server sends user affilations information</td>
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