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	<title>King Computer Sydney Network Engineers IT Blog &#187; VOIP</title>
	<atom:link href="http://technicians-blog.kingcomputer.com.au/category/voip/feed/" rel="self" type="application/rss+xml" />
	<link>http://technicians-blog.kingcomputer.com.au</link>
	<description>Tech tips, news and interesting stuff</description>
	<lastBuildDate>Thu, 29 Jul 2010 04:34:36 +0000</lastBuildDate>
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			<item>
		<title>Elastix Asterisk 2.7 FreePBX configure extension to use specific outbound trunk</title>
		<link>http://technicians-blog.kingcomputer.com.au/elastix-asterisk-2-7-freepbx-configure-extension-to-use-specific-outbound-trunk/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/elastix-asterisk-2-7-freepbx-configure-extension-to-use-specific-outbound-trunk/#comments</comments>
		<pubDate>Mon, 12 Jul 2010 02:34:38 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[Asterisk]]></category>
		<category><![CDATA[VOIP]]></category>
		<category><![CDATA[Asterisk 2.7]]></category>
		<category><![CDATA[context]]></category>
		<category><![CDATA[Elastix]]></category>
		<category><![CDATA[extension]]></category>
		<category><![CDATA[FreePBX]]></category>
		<category><![CDATA[outbound trunk]]></category>
		<category><![CDATA[route]]></category>
		<category><![CDATA[specific]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=1867</guid>
		<description><![CDATA[I have my home phone as well is business phones running through the same server.
I  wanted the home phone to route out through one sip trunk and the business lines to go out through a separate sip trunk.
From http://mirror.freepbx.org/modules/release/contributed_modules/
Download customcontexts-0.3.7.tgz
Click here for the direct download link http://mirror.freepbx.org/modules/release/contributed_modules/customcontexts-0.3.7.tgz
Go to Module admin in free PBX and click on [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Asterisk command line interface (CLI) commands</title>
		<link>http://technicians-blog.kingcomputer.com.au/asterisk-command-line-interface-cli-commands/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/asterisk-command-line-interface-cli-commands/#comments</comments>
		<pubDate>Tue, 06 Jul 2010 01:17:13 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[Asterisk]]></category>
		<category><![CDATA[CLI]]></category>
		<category><![CDATA[command line interface]]></category>
		<category><![CDATA[commands]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=1851</guid>
		<description><![CDATA[Below are a list of commands you can use from the Asterisk command line interface (CLI)
The CLI is reached by using the Linux shell command
asterisk -r
If you want debugging output, add one or many v:s
asterisk -vvvvvr
The Asterisk server has to be running in the background for the CLI to start.
If you want to run a CLI command in [...]]]></description>
		<wfw:commentRss>http://technicians-blog.kingcomputer.com.au/asterisk-command-line-interface-cli-commands/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Configure linksys spa400 with asterisk elastix voip server</title>
		<link>http://technicians-blog.kingcomputer.com.au/configure-linksys-spa400-with-asterisk-elastix-voip-server/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/configure-linksys-spa400-with-asterisk-elastix-voip-server/#comments</comments>
		<pubDate>Sun, 04 Jul 2010 11:04:19 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[Asterisk]]></category>
		<category><![CDATA[VOIP]]></category>
		<category><![CDATA[configure]]></category>
		<category><![CDATA[Elastix]]></category>
		<category><![CDATA[Linksys]]></category>
		<category><![CDATA[spa400]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=1827</guid>
		<description><![CDATA[The SPA400 operates as a single SIP trunk, it does not allow you to configure per port settings. Its therefore OK to use in a rotary incoming line situation, but not good if you want to redirect particular ports to particular SIP extensions. In that case you may use a Patton or Digium card.
Connect to [...]]]></description>
		<wfw:commentRss>http://technicians-blog.kingcomputer.com.au/configure-linksys-spa400-with-asterisk-elastix-voip-server/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Script to backup Asterisk folders</title>
		<link>http://technicians-blog.kingcomputer.com.au/script-to-backup-asterisk-folders/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/script-to-backup-asterisk-folders/#comments</comments>
		<pubDate>Sat, 05 Jun 2010 09:30:32 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[Asterisk]]></category>
		<category><![CDATA[Backup]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[folders]]></category>
		<category><![CDATA[Script]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=1803</guid>
		<description><![CDATA[The key folders to backup for asterisk are
/etc/asterisk
/var/log/asterisk
/var/lib/asterisk
/var/spool/asterisk
/usr/lib/asterisk
/var/lib/mysql
/usr/local/tomcat/webapps
You can use this script to back them up into one gz file.
ora=`date &#8216;+%Y.%m.%d-%H.%M.%S&#8217;`
tar zcf etc-asterisk-$ora.tar.gz /etc/asterisk
tar zcf var-log-asterisk-$ora.tar.gz /var/log/asterisk
tar zcf var-lib-asterisk-$ora.tar.gz /var/lib/asterisk
tar zcf var-spool-asterisk-$ora.tar.gz /var/spool/asterisk
tar zcf usr-lib-asterisk-$ora.tar.gz /usr/lib/asterisk
tar zcf var-lib-mysql-$ora.tar.gz /var/lib/mysql
tar zcf usr-local-tomcat-$ora.tar.gz /usr/local/tomcat/webapps
# make one big file of them all
tar zcf asterisk-backup-$ora.tgz *$ora*
rm -f $ora.tar.gz
Also found [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to Backup and restore Elastix Asterisk configuration on Cent OS to another server</title>
		<link>http://technicians-blog.kingcomputer.com.au/how-to-backup-and-restore-elastix-asterisk-configuration-on-cent-os-to-another-server/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/how-to-backup-and-restore-elastix-asterisk-configuration-on-cent-os-to-another-server/#comments</comments>
		<pubDate>Sat, 29 May 2010 15:56:05 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[Asterisk]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[another server]]></category>
		<category><![CDATA[Backup]]></category>
		<category><![CDATA[Cent OS]]></category>
		<category><![CDATA[configuration]]></category>
		<category><![CDATA[Elastix]]></category>
		<category><![CDATA[restore]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=1776</guid>
		<description><![CDATA[I recently found this method of doing the backup/restore
http://www2.elastix.org/en/component/kunena/116-security/47135-how-to-backup-elastix-for-migration.html?Itemid=58
A few things to be aware of

Make sure the Elastix version is the same or higher than the version that you are transferring the backup .tar file from. Otherwise if you try to transfer to an earlier version the extensions will not transfer across correctly.
you have to [...]]]></description>
		<wfw:commentRss>http://technicians-blog.kingcomputer.com.au/how-to-backup-and-restore-elastix-asterisk-configuration-on-cent-os-to-another-server/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Configure Acrobits SIP iphone app to externally access 3CX VOIP server so RTP voice traffic works</title>
		<link>http://technicians-blog.kingcomputer.com.au/configure-acrobits-sip-iphone-app-to-externally-access-3cx-voip-server-so-rtp-voice-traffic-works/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/configure-acrobits-sip-iphone-app-to-externally-access-3cx-voip-server-so-rtp-voice-traffic-works/#comments</comments>
		<pubDate>Tue, 23 Feb 2010 10:22:12 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[3CX]]></category>
		<category><![CDATA[Acrobits]]></category>
		<category><![CDATA[external]]></category>
		<category><![CDATA[iPhone]]></category>
		<category><![CDATA[Ports]]></category>
		<category><![CDATA[RTP]]></category>
		<category><![CDATA[SIP]]></category>
		<category><![CDATA[traffic]]></category>
		<category><![CDATA[voice]]></category>
		<category><![CDATA[VOIP]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=1279</guid>
		<description><![CDATA[If you are trying to get Acrobits SIP phone working on your iPhone with the 3CX VoIP telephone system use the settings indicated below.
For the domain entered the local network DNS name of the server i.e. what is used to connect to 3CX on the local network.

For Register via leave the default setting of domain

Here [...]]]></description>
		<wfw:commentRss>http://technicians-blog.kingcomputer.com.au/configure-acrobits-sip-iphone-app-to-externally-access-3cx-voip-server-so-rtp-voice-traffic-works/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Asterisk Music on Hold MOH Sound Choppy in and out using Pennytel and engin</title>
		<link>http://technicians-blog.kingcomputer.com.au/asterisk-music-on-hold-moh-sound-choppy-in-and-out-using-pennytel/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/asterisk-music-on-hold-moh-sound-choppy-in-and-out-using-pennytel/#comments</comments>
		<pubDate>Tue, 18 Aug 2009 05:33:59 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[Asterisk]]></category>
		<category><![CDATA[Choppy]]></category>
		<category><![CDATA[engin]]></category>
		<category><![CDATA[in and out]]></category>
		<category><![CDATA[MOH]]></category>
		<category><![CDATA[Music on Hold]]></category>
		<category><![CDATA[pennytel]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=983</guid>
		<description><![CDATA[When we put a call on hold using out asterisk server the Music on hold would chop in and out.
We found this choppiness only occurred using Pennytel and Engin, other VOIP providers the MOH was smooth.
Try this:

Make sure you&#8217;ve compiled zaptel and have ztdummy loaded.
Login to the server. If connecting from a windows system you [...]]]></description>
		<wfw:commentRss>http://technicians-blog.kingcomputer.com.au/asterisk-music-on-hold-moh-sound-choppy-in-and-out-using-pennytel/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Configuring external SPA942 IP SIP phone with 3CX</title>
		<link>http://technicians-blog.kingcomputer.com.au/configuring-external-spa942-ip-sip-phone-with-3cx/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/configuring-external-spa942-ip-sip-phone-with-3cx/#comments</comments>
		<pubDate>Wed, 08 Jul 2009 12:08:08 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[3CX]]></category>
		<category><![CDATA[VOIP]]></category>
		<category><![CDATA[external]]></category>
		<category><![CDATA[sip phone]]></category>
		<category><![CDATA[spa942]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=723</guid>
		<description><![CDATA[The instructions &#8220;How can I use the 3CX Tunnel with a SIP hardphone?&#8221;
on the 3cx site at http://www.3cx.com/support/3cx-tunnel.html are DUD &#8211; IGNORE THEM.
If you want to configure a SIP hardphone the default tunnelling port is 5090, not 5080. To see the Proxy and Registration settings as shown below on the SPA 942 in the admin setting [...]]]></description>
		<wfw:commentRss>http://technicians-blog.kingcomputer.com.au/configuring-external-spa942-ip-sip-phone-with-3cx/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>What VOIP ports to open and forward for 3CX</title>
		<link>http://technicians-blog.kingcomputer.com.au/what-voip-ports-to-open-and-forward-for-3cx/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/what-voip-ports-to-open-and-forward-for-3cx/#comments</comments>
		<pubDate>Wed, 08 Jul 2009 09:18:54 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[3CX]]></category>
		<category><![CDATA[VOIP]]></category>
		<category><![CDATA[forward]]></category>
		<category><![CDATA[open]]></category>
		<category><![CDATA[Ports]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=717</guid>
		<description><![CDATA[3CX needs the following ports forwarded to the VOIP server in order to work. The documentation does not by default describe which ones are meant to be TCP and which UDP so here they are:

Port 5060 (TCP and UDP) &#8211; Used for SIP protocol transmission – must be a static mapping, no port translation
Port 5090 [...]]]></description>
		<wfw:commentRss>http://technicians-blog.kingcomputer.com.au/what-voip-ports-to-open-and-forward-for-3cx/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Installing Windows 3CX VOIP telephone system with Pennytel – Part 2</title>
		<link>http://technicians-blog.kingcomputer.com.au/installing-windows-3cx-voip-telephone-system-with-pennytel-part-2/</link>
		<comments>http://technicians-blog.kingcomputer.com.au/installing-windows-3cx-voip-telephone-system-with-pennytel-part-2/#comments</comments>
		<pubDate>Sun, 05 Jul 2009 05:22:25 +0000</pubDate>
		<dc:creator>Brendan King</dc:creator>
				<category><![CDATA[VOIP]]></category>
		<category><![CDATA[3CX]]></category>
		<category><![CDATA[pennytel]]></category>
		<category><![CDATA[voice over ip]]></category>
		<category><![CDATA[windows]]></category>

		<guid isPermaLink="false">http://technicians-blog.kingcomputer.com.au/?p=683</guid>
		<description><![CDATA[Configuring Pennytel as a VOIP provider
After the intial 3CX install see http://technicians-blog.kingcomputer.com.au/index.php/installing-windows-3cx-voip-telephone-system-with-pennytel-part-1/
 Highlight VOIP providers and on the toolbar click Add Provider. Fill out the details for your pennytel account as shown. Make sure you have a trunk service from pennytel, otherwise you will only get one call in or out at a time. I set the [...]]]></description>
		<wfw:commentRss>http://technicians-blog.kingcomputer.com.au/installing-windows-3cx-voip-telephone-system-with-pennytel-part-2/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
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