{"id":827,"date":"2021-08-27T16:35:00","date_gmt":"2021-08-27T07:35:00","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=827"},"modified":"2023-11-30T15:57:01","modified_gmt":"2023-11-30T06:57:01","slug":"video_conference_voice_call","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/en\/manual\/videoconference_voicecall\/video_conference_voice_call","title":{"rendered":"Overview of Web Conferencing and Video Calling"},"content":{"rendered":"<style type=\"text\/css\"><!--\ntable, th, td {\n    border: none !important;\n}\n--><\/style>\n<h2 class=\"common_title\"><a name=\"voip\"><\/a>About Web Conferencing and Video Calling<\/h2>\n<p>Chat&amp;Messenger is easy to use <strong>video call<\/strong>, ,<strong>Web Conference<\/strong>, ,<strong>Desktop Screen Sharing<\/strong> is available.<\/p>\n<p>The feature of this system is that it can be established quickly and cost-effectively when a simple meeting can be held via web conference to save on transportation costs, or when real-time images of remote sites can be used to provide more detailed information about the situation there.<\/p>\n<p>Use from Chat&amp;Messenger desktop version without the need for a server<a href=\"https:\/\/chat-messenger.com\/en\/manual\/videoconference_voicecall\/preparation_of_headset_camera\/\" target=\"_blank\" rel=\"noopener\">video call<\/a>and used in the browser<a href=\"https:\/\/chat-messenger.com\/en\/manual\/videoconference_voicecall\/web-conference-usage\/\" target=\"_blank\" rel=\"noopener\">Web Conference<\/a>and both are available within an on-premise environment.<\/p>\n<table>\n<tbody>\n<tr align=\"top\">\n<td>\n<div style=\"width: 200px;\" class=\"card-img\"><strong>Web conferencing\/mobile<\/strong><br \/>\n<img src=\"https:\/\/chat-messenger.com\/images\/webmeeting.png\" alt=\"Web Conference\" border=\"0\" \/><\/div>\n<\/td>\n<td>\n<div style=\"width: 200px;\" class=\"card-img\"><strong>Screen sharing via web conference<\/strong><br \/>\n<img src=\"https:\/\/chat-messenger.com\/images\/webmeeting_function.png\" alt=\"Screen sharing via web conference\" border=\"0\" \/><\/div>\n<\/td>\n<td>\n<div style=\"width: 200px;\" class=\"card-img\"><strong>Video calls for LAN<\/strong><br \/>\n<img src=\"https:\/\/chat-messenger.com\/images\/tv_chat.jpg\" alt=\"teleconference\" border=\"0\" \/><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"point\">Important: The<\/p>\n<ul>\n<li><mark>Web conferencing offers better quality than videoconferencing and requires about half the network bandwidth. For new installations, video calls are deprecated in favor of web conferencing.<\/mark><\/li>\n<li><mark>The maximum number of connections is approximately 4 for video calls and 100 for web conferencing.<\/mark><\/li>\n<li>For on-premise web conferencing,<a href=\"https:\/\/chat-messenger.com\/en\/manual\/camserver\/usage-camserver\/\" target=\"_blank\" rel=\"noopener\">CAMServer<\/a> The introduction of a<\/li>\n<li>Only web conferencing can be linked to mobile devices<\/li>\n<li>Other differences are <a href=\"#comapre\">Video Calling, Web Conference Comparison<\/a> reference<\/li>\n<\/ul>\n<\/div>\n<h2>Usage Scenes<\/h2>\n<h3><a name=\"desktop_connect\"><\/a>screen sharing<\/h3>\n<p>Desktop screens can be transmitted in real time. This can be used for presentations during meetings, help desks, etc.<\/p>\n<table>\n<tbody>\n<tr align=\"top\">\n<td width=\"400\">\n<div class=\"card-img post_img\"><strong>Web Conferencing Screen Sharing<\/strong><br \/>\n<img src=\"\/images\/web-conf-desktop-share.jpg\" alt=\"Screen sharing via web conference\" border=\"0\" \/><\/div>\n<\/td>\n<td width=\"400\">\n<div class=\"card-img post_img\"><strong>For LAN<\/strong><br \/>\n<img src=\"\/images\/desktop_connect2.jpg\" alt=\"Desktop Screen Sharing\" border=\"0\" \/><\/p>\n<p>The image quality for LAN is rough compared to that of Web conferencing.<\/p>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><a name=\"webinar\"><\/a>Also used as a web seminar function<\/h3>\n<p>Web Seminar\" is a function for holding seminars online. By delivering seminars online, the cost of renting a venue, travel expenses for participants (transportation costs), and time required for preparation can be significantly reduced.<\/p>\n<p>No account registration is required on the other end, and URLs can be easily issued for viewing only, enabling web conferencing with a large number of participants while reducing communication volume. Of course, participation is also possible from smartphones.<\/p>\n<div class=\"card-img post_img\" style=\"width: 280px;\"><img src=\"\/images\/webinar.jpg\" alt=\"\" border=\"0\" \/><\/div>\n<div class=\"point\">Web conferencing improves visual clarity by activating the camera and microphone only for the person presenting, while at the same time significantly lowering the amount of traffic.<\/div>\n<h3><a name=\"TVConf\"><\/a>Videoconferencing for LAN<\/h3>\n<p>Easy to set up a videoconferencing system without the need for a server.<\/p>\n<div class=\"card-img post_img\"><img src=\"\/images\/FullScreenTVConference.jpg\" alt=\"\" border=\"0\" \/><\/div>\n<h2 class=\"common_title\"><a name=\"youken\"><\/a>Installation Requirements<\/h2>\n<h4>On-premise version (video call for LAN) Installation requirements:<\/h4>\n<p>To use this function between locations,<a href=\"https:\/\/chat-messenger.com\/en\/blog\/vpn_onpremise_groupware_businesschat\/\">VPN \/ IP-VPN<\/a> already in progress due to<u>Can the PCs at each site communicate with each other over the IP network?<\/u>Please check.<\/p>\n<p>By using the \"external user acquisition function\" of CAMServer, network users between locations can be easily recognized.<\/p>\n<h4>On-premise version (web conferencing) Installation requirements:<\/h4>\n<p>CAMServer and the base PC can be connected.<br \/>\n* There is no need for communication between PCs at the base over the IP network.<\/p>\n<h4>Port to be used:<\/h4>\n<p><a href=\"https:\/\/chat-messenger.com\/en\/manual\/etc\/faq\/#port\/\" target=\"_blank\" rel=\"noopener\">About the port to be used<\/a><\/p>\n<h2><a name=\"max_connect\"><\/a>Approximate maximum number of simultaneous connections<\/h2>\n<p><a href=\"https:\/\/chat-messenger.com\/en\/manual\/etc\/faq\/#web_meeting\" target=\"_blank\" rel=\"noopener\">Approximate maximum number of simultaneous connections<\/a> Please refer to<\/p>\n<h2><a name=\"comapre\"><\/a>Video Calling, Web Conference Comparison<\/h2>\n<style type=\"text\/css\">.ritz .waffle a { color: inherit; }.ritz .waffle .s6{border-bottom:1px SOLID #000000;border-right:1px SOLID #000000;background-color:#ffffff;text-align:left;vertical-align:bottom;white-space:nowrap;direction:ltr;padding:2px 3px 2px 3px;}.ritz .waffle .s0{border-bottom:1px SOLID #000000;background-color:#ffffff;}.ritz .waffle .s5{border-bottom:1px DASHED #000000;border-right:1px SOLID #000000;background-color:#ffffff;text-align:left;vertical-align:bottom;white-space:nowrap;direction:ltr;padding:2px 3px 2px 3px;}.ritz .waffle .s3{border-bottom:1px SOLID #000000;border-right:1px SOLID #000000;background-color:#d9d9d9;text-align:center;vertical-align:bottom;white-space:nowrap;direction:ltr;padding:2px 3px 2px 3px;}.ritz .waffle .s1{border-right:1px SOLID #000000;background-color:#ffffff;}.ritz .waffle .s2{border-bottom:1px SOLID #000000;border-right:1px SOLID #000000;background-color:#d9d9d9;text-align:left;vertical-align:bottom;white-space:nowrap;direction:ltr;padding:2px 3px 2px 3px;}.ritz .waffle .s7{border-bottom:1px SOLID #000000;border-right:1px SOLID #000000;background-color:#ffffff;text-align:left;vertical-align:bottom;white-space:nowrap;direction:ltr;padding:2px 3px 2px 3px;}.ritz .waffle .s4{border-bottom:1px DASHED #000000;border-right:1px SOLID #000000;background-color:#ffffff;text-align:left;vertical-align:bottom;white-space:nowrap;direction:ltr;padding:2px 3px 2px 3px;}<\/style>\n<div class=\"ritz grid-container\" dir=\"ltr\">\n<table class=\"waffle\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 30px;\">\n<td><\/td>\n<td class=\"s0\"><\/td>\n<td class=\"s0\"><\/td>\n<td class=\"s0\"><\/td>\n<td class=\"s0\"><\/td>\n<td class=\"s0\"><\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s2\"><\/td>\n<td class=\"s3\" width=\"120\" dir=\"ltr\"><b>video call<\/b><\/td>\n<td class=\"s3\" width=\"120\" dir=\"ltr\"><b>Web Conference<\/b><\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b>video codec<\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">VP8<\/td>\n<td class=\"s5\" dir=\"ltr\">VP9 <span style=\"font-size: x-small;\">*Half the bit rate of VP8<\/span><\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b>access method<\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">P2P connection to all users<\/td>\n<td class=\"s5\" dir=\"ltr\">2 users are P2P, 3 or more users are SFU<\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b>Relay servers such as CAMServer<\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">Available without<\/td>\n<td class=\"s5\" dir=\"ltr\">Required<\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b>IP connection between terminals<\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">Required<\/td>\n<td class=\"s5\" dir=\"ltr\">unnecessary<\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b>document sharing<\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">weak<\/td>\n<td class=\"s5\" dir=\"ltr\">symbol used as a placeholder (either because a number of other words could be used in that position or because of censorship) <span style=\"font-size: x-small;\">*Can be shared beautifully.<\/span><\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b>Web Conference Recording<\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">\u00d7x-mark (used to indicate an incorrect answer in a test, etc.)<\/td>\n<td class=\"s5\" dir=\"ltr\">symbol used as a placeholder (either because a number of other words could be used in that position or because of censorship)<\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b>Smartphone support<\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">\u00d7x-mark (used to indicate an incorrect answer in a test, etc.)<\/td>\n<td class=\"s5\" dir=\"ltr\">symbol used as a placeholder (either because a number of other words could be used in that position or because of censorship)<\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b><a href=\"https:\/\/chat-messenger.com\/en\/manual\/videoconference_voicecall\/video_conference_voice_call\/#webinar\/\" target=\"_blank\" rel=\"noopener\">Quick Web Conference<\/a><\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">\u00d7x-mark (used to indicate an incorrect answer in a test, etc.)<\/td>\n<td class=\"s5\" dir=\"ltr\">symbol used as a placeholder (either because a number of other words could be used in that position or because of censorship)<\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s4\" dir=\"ltr\"><b>Maximum number of simultaneous connections<\/b><\/td>\n<td class=\"s5\" dir=\"ltr\">8 people with camera<br \/>\nApproximately 20 people for audio only<\/td>\n<td class=\"s5\" dir=\"ltr\">20 people with camera<br \/>\nApproximately 30 people for audio only<\/td>\n<\/tr>\n<tr style=\"height: 30px;\">\n<td class=\"s1\"><\/td>\n<td class=\"s6\" dir=\"ltr\"><b>Our Focus<\/b><\/td>\n<td class=\"s7\" dir=\"ltr\">No major improvements will be made in the future.<\/td>\n<td class=\"s7\" dir=\"ltr\">Improve it as our focus feature<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>About web conferencing\/video calling Chat&amp;Messenger is easy to use for video calling, web conferencing, desk [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":""},"categories":[12],"tags":[],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/posts\/827"}],"collection":[{"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/comments?post=827"}],"version-history":[{"count":6,"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/posts\/827\/revisions"}],"predecessor-version":[{"id":9331,"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/posts\/827\/revisions\/9331"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/media?parent=827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/categories?post=827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/en\/wp-json\/wp\/v2\/tags?post=827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}