

<!-- Home: no -->{"id":53843,"date":"2022-06-08T09:02:37","date_gmt":"2022-06-08T09:02:37","guid":{"rendered":"https:\/\/sonetel.com\/?page_id=53843"},"modified":"2022-08-02T07:05:53","modified_gmt":"2022-08-02T07:05:53","slug":"make-and-receive-calls-with-sip-phones","status":"publish","type":"page","link":"https:\/\/sonetel.com\/en\/help\/help-topics\/telephony\/make-and-receive-calls-with-sip-phones\/","title":{"rendered":"SIP phones"},"content":{"rendered":"<p><b>3rd party SIP-phones can be connected to Sonetel for making and receiving calls.<\/b><\/p>\n<div class=\"article-image-wrapper\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-44707\" src=\"https:\/\/sonetel.com\/wp-content\/uploads\/2021\/12\/lumensoft-technologies-WaGMKmJ2F0Y-unsplash-1024x691.jpg\" alt=\"\" width=\"1024\" height=\"691\" srcset=\"https:\/\/sonetel.com\/wp-content\/uploads\/2021\/12\/lumensoft-technologies-WaGMKmJ2F0Y-unsplash-1024x691.jpg 1024w, https:\/\/sonetel.com\/wp-content\/uploads\/2021\/12\/lumensoft-technologies-WaGMKmJ2F0Y-unsplash-300x202.jpg 300w, https:\/\/sonetel.com\/wp-content\/uploads\/2021\/12\/lumensoft-technologies-WaGMKmJ2F0Y-unsplash-768x518.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div>\n<h3>Configure your SIP phone<\/h3>\n<ul>\n<li>Most popular SIP phones<br \/>\n<span style=\"color: #808080;\">See how to configure the<\/span><a href=\"https:\/\/sonetel.com\/en\/help\/help-topics\/telephony\/make-and-receive-calls-with-sip-phones\/most-popular-sip-phones\/\"> most popular SIP phones<\/a><\/li>\n<li>All SIP phones by operating system<br \/>\n<span style=\"color: #808080;\">See configuration guides for SIP phones sorted by <a href=\"https:\/\/sonetel.com\/en\/help\/help-topics\/telephony\/make-and-receive-calls-with-sip-phones\/sip-phones-by-operating-system\/\">Operating system<\/a>.<\/span><\/li>\n<li>Other SIP-phones<br \/>\n<span style=\"color: #808080;\">If your SIP phone isn&#8217;t among those listed, have a look at the<\/span> <a href=\"https:\/\/sonetel.com\/en\/help\/help-topics\/telephony\/make-and-receive-calls-with-sip-phones\/standard-configuration-of-sip-phones\/\">Standard SIP phone configuration<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>See if your SIP phone is registered<\/h3>\n<p>In your Sonetel personal call settings, you will be able to see your registered SIP phones in the <a href=\"https:\/\/app.sonetel.com\/messages\/settings\/call-settings\/advanced\" target=\"_blank\" rel=\"noopener\">Advanced call settings<\/a>\u00a0under &#8220;IP phones&#8221;.<\/p>\n<p>&nbsp;<\/p>\n<h3>Receive incoming calls<\/h3>\n<p>You can have multiple SIP phones registered. They will all ring when there is a call for you &#8211; as long as you have your <a href=\"https:\/\/app.sonetel.com\/messages\/settings\/call-settings\/incoming-calls\" target=\"_blank\" rel=\"noopener\">incoming call settings<\/a> configured to <strong>Ring all phones<\/strong> or <strong>Ring my IP phones<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<h3>Be aware of the risks<\/h3>\n<p>There are many potential risks when using SIP phones, which may cause calls to fail or have poor quality. Most of these risks are outside Sonetel&#8217;s control. It may or may not be possible to overcome quality issues caused by such risks.<\/p>\n<p>Here are some of the risks that impact the quality of your calls.<\/p>\n<ul>\n<li>NAT<br \/>\n<span style=\"color: #808080;\">The NAT is built into your router and allows a single Internet-facing IP-address to be shared by many devices in your local network. NATs can create a lot of issues hindering SIP signalling and audio to come through to your SIP phones.<\/span><\/li>\n<li>ALGs<br \/>\n<span style=\"color: #808080;\">&#8220;Application Level Gateways&#8221; can be found in Routers, Firewalls and in the equipment of your service provider. It may identify the signaling sent across your Internet connection as SIP-signaling, and make changes in it &#8211; on the fly. The intention is good, but the result can be a disaster for your calls.<\/span><\/li>\n<li>Codecs<br \/>\n<span style=\"color: #808080;\">If your SIP phone configuration of what codec to use for encoding audio isn&#8217;t compatible with what our service provider is able to handle, then audio can become a problem.<\/span><\/li>\n<li>Latency<br \/>\n<span style=\"color: #808080;\">3G connection and WiFi is not optimized for real time audio. A data delivery delay of 0,5 seconds &#8211; which is standard in 3G &#8211; will lead to an unnatural dialogue where you will be interrupting each other in the call.<\/span><\/li>\n<li>Lost connection<br \/>\n<span style=\"color: #808080;\">If you move around, you may have a patchy Internet connection, which will lead to poor audio quality.<\/span><\/li>\n<li>SIP interoperability<br \/>\n<span style=\"color: #808080;\">SIP calls are chains of signaling between multiple independent providers, involving a wide range of SIP signaling equipment from different vendors. It usually works great, but sometimes there can be subtle differences in the SIP-signaling by one party, that simply turns out to be unacceptable for some other party &#8211; causing calls to fail. Sonetel&#8217;s SIP servers and our providers SIP service have worked exceptionally well since years &#8211; but the extra components you bring into the mix may create unique new combinations that may cause issues.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Other risks:<\/p>\n<ul>\n<li>Security holes<br \/>\n<span style=\"color: #808080;\">SIP phones come with their own security vulnerabilities that can be abused by criminals to make calls at your cost. This is especially true if you have a SIP phone that hasn&#8217;t been updated in a while. Never place a SIP-phone outside a Firewall.\u00a0 Criminals use scripts to scan millions of IP-addresses to find SIP-devices known to have vulnerabilities. They then use other scripts to hack their way into the SIP phone &#8211; to make expensive calls at your cost (which can give them kick-back from the phone company in the country called).<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<div class=\"blue-wrapper\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Session_Initiation_Protocol\" target=\"_blank\" rel=\"noopener\">SIP<\/a> is a standard used for sending calls across the Internet.\u00a0\u00a0<\/div>\n<div class=\"blue-wrapper\">Our support does not include help with SIP phones. We can however assist you for a <a href=\"https:\/\/sonetel.com\/en\/help\/help-topics\/telephony\/make-and-receive-calls-with-sip-phones\/get-started-help-with-sip-phones\/\">small extra fee<\/a>. <\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>3rd party SIP-phones can be connected to Sonetel for making and receiving calls. Configure your SIP phone Most popular SIP&#8230;<\/p>\n","protected":false},"author":3,"featured_media":47255,"parent":23500,"menu_order":45,"comment_status":"closed","ping_status":"closed","template":"templates\/help-subtopic.php","meta":{"footnotes":""},"class_list":["post-53843","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.5 (Yoast SEO v25.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SIP phones - Sonetel<\/title>\n<meta name=\"description\" content=\"3rd party SIP-phones can be connected to Sonetel for making and receiving calls. 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