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		<id>https://docs.telcobridges.com/mediawiki/index.php?action=history&amp;feed=atom&amp;title=MTP1_Layer</id>
		<title>MTP1 Layer - Revision history</title>
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		<updated>2026-06-10T12:07:03Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://docs.telcobridges.com/mediawiki/index.php?title=MTP1_Layer&amp;diff=25261&amp;oldid=prev</id>
		<title>Allyntree: Needs revising edit</title>
		<link rel="alternate" type="text/html" href="https://docs.telcobridges.com/mediawiki/index.php?title=MTP1_Layer&amp;diff=25261&amp;oldid=prev"/>
				<updated>2018-03-22T13:49:53Z</updated>
		
		<summary type="html">&lt;p&gt;Needs revising edit&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
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		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 13:49, 22 March 2018&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The MTP1 layer is the physical layer and is responsible &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;of &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;actual &lt;/del&gt;[[HDLC]] framing of [[SS7]] packets (usually called [[MSU]] – Message signaling unit). &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Beside &lt;/del&gt;the transmission and reception of frames&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/del&gt;calculation of [[CRC]], this layer is also responsible &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;to monitor &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;report &lt;/del&gt;the quality of the link based on the number of failures detected (CRC errors, unexpected packets).&amp;#160; Using specially formatted packets ([[LSSU]] and [[FISU]]), this layer &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;makes sure &lt;/del&gt;the communication with the peer side is always valid and synchronized, even when the communication link is supposedly idle (no MSU being sent).&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The MTP1 layer is the physical &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;SS7 &lt;/ins&gt;layer and is responsible &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;for &lt;/ins&gt;the [[HDLC]] framing of [[SS7]] packets (usually called [[MSU]] – Message signaling unit). &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Besides &lt;/ins&gt;the transmission and reception of frames &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and the &lt;/ins&gt;calculation of [[CRC]], this layer is also responsible &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;for monitoring &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;reporting &lt;/ins&gt;the quality of the link based on the number of failures detected (CRC errors, unexpected packets).&amp;#160; Using specially formatted packets ([[LSSU]] and [[FISU]]), this layer &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;ensures that &lt;/ins&gt;the communication with the peer side is always valid and synchronized, even when the communication link is supposedly idle (no MSU being sent).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[category:Glossary]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[category:Glossary]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;[[category:Needs revising]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Allyntree</name></author>	</entry>

	<entry>
		<id>https://docs.telcobridges.com/mediawiki/index.php?title=MTP1_Layer&amp;diff=2530&amp;oldid=prev</id>
		<title>Cboulanger: /* TelcoBridges and MTP1 */</title>
		<link rel="alternate" type="text/html" href="https://docs.telcobridges.com/mediawiki/index.php?title=MTP1_Layer&amp;diff=2530&amp;oldid=prev"/>
				<updated>2009-09-02T02:39:59Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;TelcoBridges and MTP1&lt;/span&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 02:39, 2 September 2009&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== TelcoBridges and MTP1 ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== TelcoBridges and MTP1 ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;TelcoBridges supports &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;MTP2 &lt;/del&gt;as part of its SS7 signaling stack.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;TelcoBridges supports &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;MTP1 &lt;/ins&gt;as part of its SS7 signaling stack.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[category:Glossary]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[category:Glossary]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[category:Needs revising]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[category:Needs revising]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Cboulanger</name></author>	</entry>

	<entry>
		<id>https://docs.telcobridges.com/mediawiki/index.php?title=MTP1_Layer&amp;diff=2479&amp;oldid=prev</id>
		<title>Ktrueman: initial content from SS7 user guide</title>
		<link rel="alternate" type="text/html" href="https://docs.telcobridges.com/mediawiki/index.php?title=MTP1_Layer&amp;diff=2479&amp;oldid=prev"/>
				<updated>2009-08-31T19:38:45Z</updated>
		
		<summary type="html">&lt;p&gt;initial content from SS7 user guide&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;The MTP1 layer is the physical layer and is responsible of the actual [[HDLC]] framing of [[SS7]] packets (usually called [[MSU]] – Message signaling unit). Beside the transmission and reception of frames, calculation of [[CRC]], this layer is also responsible to monitor and report the quality of the link based on the number of failures detected (CRC errors, unexpected packets).  Using specially formatted packets ([[LSSU]] and [[FISU]]), this layer makes sure the communication with the peer side is always valid and synchronized, even when the communication link is supposedly idle (no MSU being sent).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== TelcoBridges and MTP1 ==&lt;br /&gt;
TelcoBridges supports MTP2 as part of its SS7 signaling stack.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[category:Glossary]]&lt;br /&gt;
[[category:Needs revising]]&lt;/div&gt;</summary>
		<author><name>Ktrueman</name></author>	</entry>

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