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	<id>https://wiki.barix.com/index.php?action=history&amp;feed=atom&amp;title=Asterix_Server_configuration_for_Relay_control</id>
	<title>Asterix Server configuration for Relay control - Revision history</title>
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	<updated>2026-04-25T19:42:05Z</updated>
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	<entry>
		<id>https://wiki.barix.com/index.php?title=Asterix_Server_configuration_for_Relay_control&amp;diff=4318&amp;oldid=prev</id>
		<title>StefanG: /* Example configuration of Asterisk Server for controlling Relays on Annuncicom SIP Client */</title>
		<link rel="alternate" type="text/html" href="https://wiki.barix.com/index.php?title=Asterix_Server_configuration_for_Relay_control&amp;diff=4318&amp;oldid=prev"/>
		<updated>2013-04-10T13:30:01Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Example configuration of Asterisk Server for controlling Relays on Annuncicom SIP Client&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:30, 10 April 2013&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot;&gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;AND, sure, you can hide the relay selection from the user also by setting up dial-able extensions within Asterisk which use the same target and just do the relay selection. There is no difference between internal and external extensions in that sense in Asterisk.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;AND, sure, you can hide the relay selection from the user also by setting up dial-able extensions within Asterisk which use the same target and just do the relay selection. There is no difference between internal and external extensions in that sense in Asterisk.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Other SIP based systems work similar.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Other SIP based systems work similar.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Back to [[Main_Page#Software_Topics]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>StefanG</name></author>
	</entry>
	<entry>
		<id>https://wiki.barix.com/index.php?title=Asterix_Server_configuration_for_Relay_control&amp;diff=3176&amp;oldid=prev</id>
		<title>Sandra: /* Example configuration of Asterix Server for controlling Relays on Annuncicom SIP Client */</title>
		<link rel="alternate" type="text/html" href="https://wiki.barix.com/index.php?title=Asterix_Server_configuration_for_Relay_control&amp;diff=3176&amp;oldid=prev"/>
		<updated>2011-07-21T14:02:32Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Example configuration of Asterix Server for controlling Relays on Annuncicom SIP Client&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 14:02, 21 July 2011&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&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=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Example configuration of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Asterix &lt;/del&gt;Server for controlling Relays on Annuncicom SIP Client==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Example configuration of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Asterisk &lt;/ins&gt;Server for controlling Relays on Annuncicom SIP Client==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here is the actual configuration as a showcase of our company Asterisk server. We use two different extensions, reachable from even outside, which connect to an Annuncicom 1000 and select/deselect the relays at connnection establishment.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here is the actual configuration as a showcase of our company Asterisk server. We use two different extensions, reachable from even outside, which connect to an Annuncicom 1000 and select/deselect the relays at connnection establishment.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Sandra</name></author>
	</entry>
	<entry>
		<id>https://wiki.barix.com/index.php?title=Asterix_Server_configuration_for_Relay_control&amp;diff=2138&amp;oldid=prev</id>
		<title>Jrietschel: /* Example configuration of Asterix Server for controlling Relays on Annuncicom SIP Client */</title>
		<link rel="alternate" type="text/html" href="https://wiki.barix.com/index.php?title=Asterix_Server_configuration_for_Relay_control&amp;diff=2138&amp;oldid=prev"/>
		<updated>2010-10-26T10:26:29Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Example configuration of Asterix Server for controlling Relays on Annuncicom SIP Client&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:26, 26 October 2010&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l4&quot;&gt;Line 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The commands sent (via SIP INFO/RFC2833) are just examples, the complete set is documented with the SIP Client firmware.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The commands sent (via SIP INFO/RFC2833) are just examples, the complete set is documented with the SIP Client firmware.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In the example below, extension 9999 is an Annuncicom 1000, and by dialling +&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;41434332229 &lt;/del&gt;from external phone line, you will be connected to the Annuncicom and all relays will be reset (off - value 0), in the second line, if you dial +&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;41434332228&lt;/del&gt;, right after connection initiation, relays 1+2 (bit 0 and 1, value 3 in decimal) will be set to on.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In the example below, extension 9999 is an Annuncicom 1000, and by dialling +&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;4143xxxxxxx &lt;/ins&gt;from external phone line, you will be connected to the Annuncicom and all relays will be reset (off - value 0), in the second line, if you dial +&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;4143xxxxxxy&lt;/ins&gt;, right after connection initiation, relays 1+2 (bit 0 and 1, value 3 in decimal) will be set to on.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  exten =&amp;gt; &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;0434332229&lt;/del&gt;,1,Dial(SIP/9999,10,D(#2*0*))        ;  can be reached from external  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  exten =&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;043xxxxxxx&lt;/ins&gt;,1,Dial(SIP/9999,10,D(#2*0*))        ;  can be reached from external  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  exten =&amp;gt; &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;0434332228&lt;/del&gt;,1,Dial(SIP/9999,10,D(#2*3*))        ;  can be reached from external  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  exten =&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;043xxxxxxy&lt;/ins&gt;,1,Dial(SIP/9999,10,D(#2*3*))        ;  can be reached from external  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Of course, you can also send such commands (#2*7* for example to set relay 1,2,3) while the connection is established from the calling phone, if it supports DTMF and all handling of the incoming phone is set up correctly in Asterisk (that is beyond our scope, standard Asterisk docs explain that well).  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Of course, you can also send such commands (#2*7* for example to set relay 1,2,3) while the connection is established from the calling phone, if it supports DTMF and all handling of the incoming phone is set up correctly in Asterisk (that is beyond our scope, standard Asterisk docs explain that well).  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jrietschel</name></author>
	</entry>
	<entry>
		<id>https://wiki.barix.com/index.php?title=Asterix_Server_configuration_for_Relay_control&amp;diff=1064&amp;oldid=prev</id>
		<title>Domenico: New page: ==Example configuration of Asterix Server for controlling Relays on Annuncicom SIP Client==  Here is the actual configuration as a showcase of our company Asterisk server. We use two diffe...</title>
		<link rel="alternate" type="text/html" href="https://wiki.barix.com/index.php?title=Asterix_Server_configuration_for_Relay_control&amp;diff=1064&amp;oldid=prev"/>
		<updated>2009-09-21T11:35:06Z</updated>

		<summary type="html">&lt;p&gt;New page: ==Example configuration of Asterix Server for controlling Relays on Annuncicom SIP Client==  Here is the actual configuration as a showcase of our company Asterisk server. We use two diffe...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Example configuration of Asterix Server for controlling Relays on Annuncicom SIP Client==&lt;br /&gt;
&lt;br /&gt;
Here is the actual configuration as a showcase of our company Asterisk server. We use two different extensions, reachable from even outside, which connect to an Annuncicom 1000 and select/deselect the relays at connnection establishment. &lt;br /&gt;
The commands sent (via SIP INFO/RFC2833) are just examples, the complete set is documented with the SIP Client firmware. &lt;br /&gt;
&lt;br /&gt;
In the example below, extension 9999 is an Annuncicom 1000, and by dialling +41434332229 from external phone line, you will be connected to the Annuncicom and all relays will be reset (off - value 0), in the second line, if you dial +41434332228, right after connection initiation, relays 1+2 (bit 0 and 1, value 3 in decimal) will be set to on. &lt;br /&gt;
&lt;br /&gt;
 exten =&amp;gt; 0434332229,1,Dial(SIP/9999,10,D(#2*0*))        ;  can be reached from external &lt;br /&gt;
 exten =&amp;gt; 0434332228,1,Dial(SIP/9999,10,D(#2*3*))        ;  can be reached from external &lt;br /&gt;
&lt;br /&gt;
Of course, you can also send such commands (#2*7* for example to set relay 1,2,3) while the connection is established from the calling phone, if it supports DTMF and all handling of the incoming phone is set up correctly in Asterisk (that is beyond our scope, standard Asterisk docs explain that well). &lt;br /&gt;
&lt;br /&gt;
AND, sure, you can hide the relay selection from the user also by setting up dial-able extensions within Asterisk which use the same target and just do the relay selection. There is no difference between internal and external extensions in that sense in Asterisk. &lt;br /&gt;
Other SIP based systems work similar.&lt;/div&gt;</summary>
		<author><name>Domenico</name></author>
	</entry>
</feed>