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<channel>
	<title>Persistent notes &#187; sip</title>
	<atom:link href="http://alexkr.com/tag/sip/feed/" rel="self" type="application/rss+xml" />
	<link>http://alexkr.com</link>
	<description>Alexander Krivutsenko&#039;s online journal</description>
	<lastBuildDate>Fri, 01 Oct 2010 08:16:50 +0000</lastBuildDate>
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			<item>
		<title>SIPP: Error opening terminal: cygwin</title>
		<link>http://alexkr.com/posts/377/sipperror/</link>
		<comments>http://alexkr.com/posts/377/sipperror/#comments</comments>
		<pubDate>Thu, 16 Sep 2010 20:32:13 +0000</pubDate>
		<dc:creator>Alex</dc:creator>
				<category><![CDATA[short]]></category>
		<category><![CDATA[sip]]></category>

		<guid isPermaLink="false">http://alexkr.com/?p=377</guid>
		<description><![CDATA[I got somewhat weird problem when trying to use SIPP on my new 64 bit Windows PC:


&#62;sipp -sn uas
Error opening terminal: cygwin.


Funny thing is, the cygwin is installed on my sytems but it is actually NOT needed.
You will need cygwin if you want to compile the SIPP, otherwise it should work just fine without it.

As [...]]]></description>
		<wfw:commentRss>http://alexkr.com/posts/377/sipperror/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Short memo about RFC 3455 SIP P-Header extensions</title>
		<link>http://alexkr.com/posts/141/short-memo-about-rfc-3455-sip-p-header-extensions/</link>
		<comments>http://alexkr.com/posts/141/short-memo-about-rfc-3455-sip-p-header-extensions/#comments</comments>
		<pubDate>Sun, 03 Aug 2008 16:16:52 +0000</pubDate>
		<dc:creator>Alex</dc:creator>
				<category><![CDATA[short]]></category>
		<category><![CDATA[protocols]]></category>
		<category><![CDATA[sip]]></category>
		<category><![CDATA[voip]]></category>

		<guid isPermaLink="false">http://alexkr.com/posts/141/short-memo-about-rfc-3455-sip-p-header-extensions/</guid>
		<description><![CDATA[P-Associated-URI

This header is included by registrar in the 200 response to the REGISTER request.
Contains list of associated URIs. Mandatory for registrars which support this RFC.
P-Called-Party-ID

This header is included in INVITE request from proxy to user agent.
Contains destination SIP URI to which initial call was planned.
Used to provided transparent URI to the end user agent in
multiple [...]]]></description>
		<wfw:commentRss>http://alexkr.com/posts/141/short-memo-about-rfc-3455-sip-p-header-extensions/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>SIP response 488 Not Acceptable Here</title>
		<link>http://alexkr.com/posts/79/sip-response-488-not-acceptable-here/</link>
		<comments>http://alexkr.com/posts/79/sip-response-488-not-acceptable-here/#comments</comments>
		<pubDate>Mon, 19 Feb 2007 16:31:53 +0000</pubDate>
		<dc:creator>Alex</dc:creator>
				<category><![CDATA[short]]></category>
		<category><![CDATA[sip]]></category>
		<category><![CDATA[voip]]></category>

		<guid isPermaLink="false">http://alexkr.com/uncategorized/79/sip-response-488-not-acceptable-here/</guid>
		<description><![CDATA[Consider the following sequence:



SIP UA                                                   [...]]]></description>
		<wfw:commentRss>http://alexkr.com/posts/79/sip-response-488-not-acceptable-here/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How DTMF are sent in VoIP</title>
		<link>http://alexkr.com/posts/78/how-dtmf-are-sent-in-voip/</link>
		<comments>http://alexkr.com/posts/78/how-dtmf-are-sent-in-voip/#comments</comments>
		<pubDate>Thu, 08 Feb 2007 16:51:07 +0000</pubDate>
		<dc:creator>Alex</dc:creator>
				<category><![CDATA[short]]></category>
		<category><![CDATA[sip]]></category>
		<category><![CDATA[voip]]></category>

		<guid isPermaLink="false">http://alexkr.com/theory/78/how-dtmf-are-sent-in-voip/</guid>
		<description><![CDATA[I was checking today at how SIP phones negotiate DTMF tones transmission. It looks like most VoIP applications including Asterix transfer DTMF using 101 payload type. Guys at MS say here that Cisco also has a default value of 101 as payload type for DTMF out of band transmission
However, this payload type is not always [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Distinction between SIP gateway and SIP proxy servers</title>
		<link>http://alexkr.com/memos/71/distinction-between-sip-gateway-and-sip-proxy-servers/</link>
		<comments>http://alexkr.com/memos/71/distinction-between-sip-gateway-and-sip-proxy-servers/#comments</comments>
		<pubDate>Tue, 28 Nov 2006 13:07:58 +0000</pubDate>
		<dc:creator>Alex</dc:creator>
				<category><![CDATA[big]]></category>
		<category><![CDATA[sip]]></category>
		<category><![CDATA[voip]]></category>

		<guid isPermaLink="false">http://alexkr.com/theory/71/distinction-between-sip-gateway-and-sip-proxy-servers/</guid>
		<description><![CDATA[RFC 3261 is very clear in defining SIP server types]]></description>
		<wfw:commentRss>http://alexkr.com/memos/71/distinction-between-sip-gateway-and-sip-proxy-servers/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Media traffic and SDP</title>
		<link>http://alexkr.com/posts/63/media-traffic-and-sdp/</link>
		<comments>http://alexkr.com/posts/63/media-traffic-and-sdp/#comments</comments>
		<pubDate>Mon, 06 Nov 2006 14:14:03 +0000</pubDate>
		<dc:creator>Alex</dc:creator>
				<category><![CDATA[short]]></category>
		<category><![CDATA[sip]]></category>
		<category><![CDATA[voip]]></category>

		<guid isPermaLink="false">http://alexkr.com/programming/63/media-traffic-and-sdp/</guid>
		<description><![CDATA[In SIP user agents the address specified in Origin header is not used for media traffic]]></description>
		<wfw:commentRss>http://alexkr.com/posts/63/media-traffic-and-sdp/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Digest authorization in SIP with MD5</title>
		<link>http://alexkr.com/memos/66/digest-authorization-in-sip-with-md5/</link>
		<comments>http://alexkr.com/memos/66/digest-authorization-in-sip-with-md5/#comments</comments>
		<pubDate>Thu, 12 Oct 2006 11:42:01 +0000</pubDate>
		<dc:creator>Alex</dc:creator>
				<category><![CDATA[big]]></category>
		<category><![CDATA[networking]]></category>
		<category><![CDATA[sip]]></category>
		<category><![CDATA[voip]]></category>

		<guid isPermaLink="false">http://alexkr.com/programming/66/digest-authorization-in-sip-with-md5/</guid>
		<description><![CDATA[How to generate a digest response]]></description>
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		<slash:comments>2</slash:comments>
		</item>
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