{"id":40352,"date":"2011-12-23T06:00:08","date_gmt":"2011-12-23T10:00:08","guid":{"rendered":"https:\/\/www.voipsupply.com\/blog\/?p=40352"},"modified":"2016-06-27T14:08:52","modified_gmt":"2016-06-27T18:08:52","slug":"digium-r-series-redundancy","status":"publish","type":"post","link":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/digium-r-series-redundancy\/","title":{"rendered":"Digium R-Series Redundancy vs. Xorcom and RedFone"},"content":{"rendered":"<p>Got resiliency?<a title=\"Digium R-Series Redundancy\" href=\"\/digium-1r800f\" onclick=\"ga('send', 'event', 'voip-insider-blog-post', 'click', 'image1');\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-40382\" style=\"border: orange 2px solid\" title=\"Digium R-Series\" src=\"\/blog\/voip-insider\/files\/2011\/12\/Digium-R-Series.jpg\" alt=\"Digium R-Series\" width=\"288\" height=\"164\" \/><\/a><\/p>\n<p>The newly released Digium R-Series\u00a0redundancy appliances enable your network to\u00a0recover from\u00a0hardware or software failures\u00a0and\u00a0maintain communication with the outside world.\u00a0\u00a0<\/p>\n<p>Digium failover appliances\u00a0work\u00a0with their open source telephony platform Asterisk to ensure that you have an open line of communication even in demanding enviroments.<\/p>\n<p>There are two models in the R-Series.\u00a0 They work on Asterisk based open sourced PBX\u2019s but do not work\u00a0on <a title=\"Switchvox\" href=\"\/manufacturer\/switchvox\" onclick=\"ga('send', 'event', 'voip-insider-blog-post', 'click', 'Switchvox');\">Switchvox<\/a>.\u00a0 Both models are 1U rack mount devices:<\/p>\n<ul>\n<li><a title=\"Digium R800\" href=\"\/digium-1r800f\" onclick=\"ga('send', 'event', 'voip-insider-blog-post', 'click', 'Digium R800');\"><strong>Digium R800<\/strong><\/a><strong>:<\/strong>\u00a0 Supports up to eight analog (POTS) circuits.<\/li>\n<li><a title=\"Digium R850\" href=\"\/digium-1r850f\" onclick=\"ga('send', 'event', 'voip-insider-blog-post', 'click', 'Digium R850');\"><strong>Digium R850<\/strong><\/a><strong>:<\/strong>\u00a0 Handles up to eight digital (T1, E1, PRI or BRI) spans.<\/li>\n<\/ul>\n<h2>What&#8217;s The Difference?<\/h2>\n<p>So even in the event of a catastrophic failure, your communications system will stay up and running with the Digium R-Series.\u00a0 That sounds great but, what makes these appliances different from other redundant systems that work with Asterisk?<\/p>\n<p>With the help of Digium engineer Pete Engler, here&#8217;s how the R-Series stacks up agains other popular appliances from <a title=\"Xorcom\" href=\"\/manufacturer\/xorcom\" onclick=\"ga('send', 'event', 'voip-insider-blog-post', 'click', 'Xorcom ');\">Xorcom <\/a> and RedFone.<\/p>\n<h2>Digium vs. Xorcom<\/h2>\n<p>The combination of <a title=\"Xorcom Astribanks\" href=\"\/manufacturer\/xorcom\/astribanks\" onclick=\"ga('send', 'event', 'voip-insider-blog-post', 'click', 'Xorcom Astribank');\">Xorcom Astribank<\/a> (HW Channel Bank) and <a title=\"Xorcom TwinStar\" href=\"\/xorcom-lc0016\" onclick=\"ga('send', 'event', 'voip-insider-blog-post', 'click', 'Xorcom TwinStar');\">Xorcom TwinStar<\/a> (Software for redundancy) is a similar application to the Digium R-Series. Below are the main differences between using the R-Series and Xorcom for redundancy:<\/p>\n<p><!--more--><\/p>\n<p><strong>Cost<\/strong><\/p>\n<ul>\n<li>The Astribank hardware can run a customer up to\u00a0four times\u00a0the cost of R-Series appliances depending on the number of T1 interfaces that are populated in the Astribank. All\u00a0eight T1 ports are included in the R-Series for <a href=\"\/digium-1r800f\" onclick=\"ga('send', 'event', 'voip-insider-blog-post', 'click', '$995 list price');\">$995 list price<\/a>.<\/li>\n<li>The Xorcom\u00a0TwinStar software is an additional cost. The open source tools used for the servers connected to the R-Series is downloadable and is free to use.<\/li>\n<\/ul>\n<p><strong>Hardware Platform<\/strong><\/p>\n<ul>\n<li>The Xorcom Astribank channel bank has more parts, such as a power supply, that are prone to fail.\u00a0Digium\u00a0utilizes\u00a0USB power from the servers to power the R-Series which\u00a0is much less vulnerable.<\/li>\n<li>R-Series is 1U rack mountable and therefore takes up less space in the rack than the 2U Astribank.<\/li>\n<\/ul>\n<p><strong>Functionality<\/strong><\/p>\n<ul>\n<li>The TwinStar\/Astribank solution can only detect a hardware power failure\u00a0if the Linux kernel has crashed. It cannot detect if Asterisk has stopped working but is with the R-Series solution (along with loss of power detection).<\/li>\n<li>If the R-Series were to lose power, the PSTN spans will continue to function through the same ports at the time of power failure. The Astribank will cease to operate at this point and communication with the PSTN is down.<\/li>\n<\/ul>\n<h2>Digium vs. RedFone<\/h2>\n<p>The RedFone gateways are another application where redundancy can be introduced to a customer location. By nature, gateways operate in a completely different manner than the R-Series for providing redundancy.<\/p>\n<ul>\n<li>A gateway is converting the PSTN TDM circuits to an IP format. RedFone uses TDMoE.\u00a0Digium R-Series offers physical layer switching\u00a0and does\u00a0not convert the signal at all from one network to another.<\/li>\n<li>If the RedFone loses power, communications cease in their gateway.<\/li>\n<li>To deploy a redundant system, multiple gateways would need to be installed and therefore will be more expensive than the R-Series. Providing redundancy for up to\u00a0eight T1&#8217;s will be at least\u00a0four times the cost, just like the Xorcom solution,\u00a0including several additional hardware pieces to manage in the datacenter.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Got resiliency? The newly released Digium R-Series\u00a0redundancy appliances enable your network to\u00a0recover from\u00a0hardware or software failures\u00a0and\u00a0maintain communication with the outside world.\u00a0\u00a0 Digium failover appliances\u00a0work\u00a0with their open source telephony platform Asterisk to ensure that you have an open line of communication even in demanding enviroments. There are two models in the R-Series.\u00a0 They work on Asterisk [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1218,1227,1225],"tags":[],"class_list":["post-40352","post","type-post","status-publish","format-standard","hentry","category-open-source-voip","category-voip-gateways","category-voip-hardware"],"_links":{"self":[{"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/posts\/40352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/comments?post=40352"}],"version-history":[{"count":5,"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/posts\/40352\/revisions"}],"predecessor-version":[{"id":181393,"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/posts\/40352\/revisions\/181393"}],"wp:attachment":[{"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/media?parent=40352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/categories?post=40352"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.voipsupply.com\/blog\/voip-insider\/wp-json\/wp\/v2\/tags?post=40352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}