The specific way to join an online meeting varies according to the meeting software or solution in place, but generally attendees can join an online meeting by entering a special access code on a dedicated page or unique URL. Many online meetings are created by a single person who invites attendees and acts as host.
Online meeting software generally provides an interface that allows one party to host a video or voice conference that is accessible to specific people through a unique identifier that is only valid while the meeting is active. For example, to join an online meeting with the service Join.me, you must enter a special access code on the site that you receive from meeting's host. Entering the code loads a special page that displays the conference interface until the host ends the session. Some services handle a similar process through a local client application, which may also include an address book system for tracking contacts.
Other online meeting options may include joining a private chat room or conference call. Web communication programs such as Skype allow you to create a user name and account with the service, after which you can host private conversations with other members. To join such a conversation, you need to know the user name of the host and accept a request to join the conference.