{"id":84,"date":"2011-08-05T09:57:20","date_gmt":"2011-08-05T09:57:20","guid":{"rendered":"http:\/\/www.myvoipapp.com\/blog\/?p=84"},"modified":"2023-04-28T07:36:13","modified_gmt":"2023-04-27T23:36:13","slug":"can-mss-support-g-729-ilbc-gsm-audio-codec-and-son-on","status":"publish","type":"post","link":"https:\/\/www.myvoipapp.com\/blog\/2011\/08\/05\/can-mss-support-g-729-ilbc-gsm-audio-codec-and-son-on\/","title":{"rendered":"Can miniSIPServer support G.729, iLBC, GSM audio codec, or video calls, and so on?"},"content":{"rendered":"<p>We are often asked this question about audio codec or video calls. Some customers want to confirm whether miniSIPServer can work well with their SIP phones\/clients who can support several audio codecs or video calls.<\/p>\n<p>We often answer that it depends on their own SIP phones\/clients. miniSIPServer, not matter local-miniSIPServer or cloud-miniSIPServer, doesn&#8217;t care media codec by default.<\/p>\n<p>Why we say that?<\/p>\n<p>Please have a look at following figure which describes a basic media process model of miniSIPServer in a normal basic call.<\/p>\n<p><a href=\"http:\/\/www.myvoipapp.com\/blog\/wp-content\/uploads\/2011\/08\/mss_media_process_basic_call.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-85\" title=\"mss_media_process_basic_call\" src=\"http:\/\/www.myvoipapp.com\/blog\/wp-content\/uploads\/2011\/08\/mss_media_process_basic_call.png\" alt=\"\" width=\"314\" height=\"248\" srcset=\"https:\/\/www.myvoipapp.com\/blog\/wp-content\/uploads\/2011\/08\/mss_media_process_basic_call.png 314w, https:\/\/www.myvoipapp.com\/blog\/wp-content\/uploads\/2011\/08\/mss_media_process_basic_call-300x237.png 300w\" sizes=\"auto, (max-width: 314px) 100vw, 314px\" \/><\/a><\/p>\n<p>From this figure, we can see:<\/p>\n<p>(1) miniSIPServer only controls call signals.<\/p>\n<p>(2) Media stream is processed by the clients themselves.<\/p>\n<p>This model will reduce the work-load of the server since all media streams are bypass server, so it is unnecessary for the server to support several media codecs.<\/p>\n<p>But in some service scenarios, miniSIPServer need play audio to the SIP phones. For example, in auto-attendant or calling card services, miniSIPServer need prompt audio announcement and collect user input information. Obviously, miniSIPServer is required to support audio codecs in these scenarios.<\/p>\n<p>That&#8217;s right. If miniSIPServer need process audio stream, it can support two audio codecs: G711a (PCMA) and G711u (PCMU).<\/p>\n<p>By the way, after playing audio stream, the final media stream will be processed still in end-to-end model. Please refer to following media model of miniSIPServer for these scenarios:<\/p>\n<figure id=\"attachment_86\" aria-describedby=\"caption-attachment-86\" style=\"width: 314px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.myvoipapp.com\/blog\/wp-content\/uploads\/2011\/08\/mss_media_process_play_audio.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-86\" title=\"mss_media_process_play_audio\" src=\"http:\/\/www.myvoipapp.com\/blog\/wp-content\/uploads\/2011\/08\/mss_media_process_play_audio.png\" alt=\"\" width=\"314\" height=\"248\" srcset=\"https:\/\/www.myvoipapp.com\/blog\/wp-content\/uploads\/2011\/08\/mss_media_process_play_audio.png 314w, https:\/\/www.myvoipapp.com\/blog\/wp-content\/uploads\/2011\/08\/mss_media_process_play_audio-300x236.png 300w\" sizes=\"auto, (max-width: 314px) 100vw, 314px\" \/><\/a><figcaption id=\"caption-attachment-86\" class=\"wp-caption-text\">Play audio stream<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>We are often asked this question about audio codec or video calls. Some customers want to confirm whether miniSIPServer can work well with their SIP phones\/clients who can support several audio codecs or video calls. We often answer that it depends on their own SIP phones\/clients. miniSIPServer, not matter local-miniSIPServer or cloud-miniSIPServer, doesn&#8217;t care media codec by default. Why we say that? Please have a look at following figure which describes a basic media process model of miniSIPServer in a&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.myvoipapp.com\/blog\/2011\/08\/05\/can-mss-support-g-729-ilbc-gsm-audio-codec-and-son-on\/\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,35,34],"tags":[39,41,25,40],"class_list":["post-84","post","type-post","status-publish","format-standard","hentry","category-faq","category-minisipserver","category-minisipserver_cloud","tag-audio-codec","tag-g729","tag-gsm","tag-ilbc"],"_links":{"self":[{"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/posts\/84","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/comments?post=84"}],"version-history":[{"count":6,"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/posts\/84\/revisions"}],"predecessor-version":[{"id":883,"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/posts\/84\/revisions\/883"}],"wp:attachment":[{"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/media?parent=84"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/categories?post=84"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blog\/wp-json\/wp\/v2\/tags?post=84"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}