A list of all current meeting participants is shown with role indication.
* Host and presenter can use the context menu (right click) or the main menu to assign a role to a participant, mute/unmute a participant, or take other actions;
* A participant can upload a self image which is displayed on everyone's participant list;
* Display audio network status, video status and annotation color of every participant;
* Every participant can express opinions: raise hand, agree or disagree;
* While in the meeting, participant can change the name for display.

* Participant can change the UI language anytime during the meeting: English, French, Spanish, Japanese, Korean, Simplified Chinese or Traditional Chinese;
* Within a meeting, participants can choose different UI languages;
* In a meeting, participant can use any language (not just the UI languages that we support) to chat or annotate a document;
* In a meeting, presenter can share documents written in any language (not just the UI languages that we support).

The presenter can share a document with all participants.
* The types of document we currently support are: Microsoft Office (2000-2007) Power Point (.ppt, .pptx), Excel (.xls, .xlsx) and Word (.doc and .docx), Adobe Acrobat (.pdf), text (.txt), images (.jpg, .gif, .png);
* The types of video files we currently support are: .asf, .avi, .flv, .mov, .mp4, .mpeg, .mpg, .rm, .swf, .vob, .wmv;
* Presenter controls the document viewing for all participants;
* Presenter can use a pointer on the presentation;
* Presenter can annotate (lines, text and name stamp) on the presentation;
* With the permission of the presenter, each participant can also annotate;
* All participants can zoom on the shared document;
* Presenter can share multiple documents at the same time;
* Support readiness on each page: presenter knows how many participants have downloaded the page;
* Support auto-play: presenter can let a document automatically display all pages in sequence with controllable speed;
* Support rotation: presenter can rotate all pages of a document clockwisely or counter-clockwisely;
* All participants can zoom on the shared video;
* Presenter controls the playback of the shared video: if presenter pauses on a frame, all participants pause on the same frame.

The presenter can share multiple whiteboards with all participants. Everyone can write text and draw on it, and save the whiteboard as an image (PNG) file.

Presenter can transfer any files (up to 5 files and 20MB at a time) to all participants.

To support desktop sharing, a program must be run on sharer's PC. IOMeeting's solution is both easy and secure: Only the sharer needs to download and run a temporary file, all the other meeting participants still use pure HTML to view the sharer's desktop. The temporary file is digitally signed by IOMeeting to ensure that it is from IOMeeting. The temporary file is downloaded to your temporary file folder. IOMeeting doesn't install any file in your systems directory, nor does IOMeeting put anything in your start menu or on your desktop;
* Sharer can see a miniature of shared desktop (clicking on the IOMeeting icon in Windows system icon tray can show or hide the miniature window). A transparent layer on the miniature is used to indicate readiness: red means less than 35% of participants are in sync, yellow means between 35% and 65%, green means between 65% and 100%, no transparent layer mean 100% of participants are in sync;
* Support remote control: during desktop or application sharing, presenter and the sharer can let any participant to control the desktop or application. Presenter can also request any participant to share desktop or application. The remote control supports all mouse events like click, move and drag, mouse buttons and all standard keys on keyboard, including combinations like Ctrl+C and Ctrl+V. And the remote control is cross platform, for example, a Windows participant can control a Mac's or Linux's desktop;
* If you share desktop often, you also can install a plug-in so that you don't need to download the temporary file while in meeting;
* Support both lossy and lossless image compression methods, both are 24-bit.

Besides sharing whole desktop, presenter can also choose to share only one or more applications running on the desktop. Compared with desktop sharing, application sharing is more private and generates much less network traffic (only 10% or less).

Host can start free audio conference (VOIP). In order to join audio conference, participant needs to install Flash browser plugin.
* Support unlimited number of microphones;
* Support mute-upon-entry: participant is not allowed to talk initially;
* Host and presenter can allow or deny any participant to talk;
* Every participant can mute/unmute himself or herself;
* Support who-is-talking indication;
* Support private audio room.

Host can start video conference. In order to join video conference, participant needs to install Flash.
* There are three video modes: '3-video','1+6 video' and 'video wall';
* Video wall supports 52 layouts: 1x1, 2x2, 4x3, 6x5, L-shape, U-shape, O-shape, etc. Every participant can zoom in or out the entire video wall, or make video wall full-screen;
* Every participant can pause and resume any video playback. When one participant's audio status is bad, system will automatically pause this participant's video playback;
* Support auto looping. Host can use any video window to automatically loop through all participants;
* Host can use meeting media option dialog to adjust video quality (70% to 130% of predefined value), video smoothness (frames per second) and video bandwidth (0.5 times to 50 times of predefined value);
* Host can use meeting media option dialog to select a media server that is best for the meeting participants ;
* If users have enough bandwidth, they can choose to have more video windows and higher quality video;
* If users doesn't have enough bandwidth, they can choose fewer video windows or no video.

Because IOMeeting client can run on Windows, IOMeeting can work with various audio and video equipment, and their software.
* High-end CCD video cameras plus video capture card;
* Microphone systems with several wireless microphones, plus audio capture card with echo cancellation;
* High resolution monitors or projectors;
* Surround sound speaker systems;
* Can integrate with software that controls video camera: panning, zooming, focus, etc.

Each participant can use multiple full-screen modes:
* First, each participant can use browser's full screen mode (the shortcut key is usually F11);
* Secondly, each participant can use meeting full screen mode;
* Meeting full screen mode can display: document sharing, whiteboard sharing, desktop sharing, application sharing, video wall and meeting information;
* Presenter can control all participants' meeting full screen mode;
* At last, each participant can use video wall full-screen mode.

All participants can view the information of the meeting: meeting topic, host name, meeting ID, meeting URL, meeting agenda, audio conference instruction, etc. Before and during the meeting, host can send meeting invitation to others using email.

User can chat with all participants publicly or with host or presenter privately;
* Late join participant see the public chat history;
* Support smilies;
* The chat dialog can be detached and floating, and then can be resized and moved around;
* The chat history can be saved as a file.

We support meeting recording by using our own WebDV browser. Use WebDV to start or join a meeting, then you can record the meeting to a MPEG-4 file on your machine. The recording contains everything in the meeting, including document sharing, desktop sharing, application sharing, chat, audio and video. For security, host has control of who can record a meeting. On 'Meeting Options' dialog and 'Recording' tab, host has 3 options of recording permission: 'Always ask' (when someone starts recording, always ask host for permission. Host can accept or deny the request. This is the default.), 'Only host' (no one except host can record) or 'Everyone' (every participant can record).

Host can assign someone as note taker. The note taker can use a rich editor to take notes and then publish the notes to everyone in the meeting. Everyone can save the notes as a file.

When a participant loses connection to a meeting due to network failure, everyone will see a notice that the participant is no longer in the meeting. Once the connection is established again, the participant will rejoin the meeting automatically.

Each Corporate account has its own site (e.g., https://abc.iomeeting.us) and an admin account.

Site admin can add or remove hosts; set default display language and time zone for the site; check the log of all activities on the site; pay membership, etc.

Host can choose to login to a site automatically when they return to the site, without entering email and password.

When scheduling a meeting, host can specify meeting topic, password, agenda, date-time and in which time zone, meeting default display language, etc.

All the hosts of the same site share the same meeting schedule. Hosts can find information of others' meetings (except for private meetings).

Hosts can upload files to server and then use the files for document sharing and file transfer during meetings; Site admin can upload files to server to be used by all meetings of the site. After files are uploaded to the server, you can also convert the files to HTML format to be used in meetings directly.

For every meeting, there is a meeting URL. Participants can use this URL to join meeting quickly. IOMeeting also provides several other URL's that allow users to quickly start and join meetings. See details at FAQ.

For previous meetings, host can see the list of meeting participants and when each one joined and left the meeting.