Glossary » call control

call control

same as session control; the mechanism for determining who is involved in a call (session) and for setting up the call. A call is the term used most frequently for telephone sessions. The term session is used more often in order not to confuse “call control” issues with simple phone call issues. Some typical call control issues:

• How many people can be in a call?
• Are there restrictions on who can be in a call (e.g. security limitations)?
• Who can initiate a call?
• How do callers locate other people? How are directory services handled?
• How are calls initiated? Does everyone have to independently connect to a central location (as in a chat room)? Does the call get connected as soon as a caller identifies a call recipient? Does a call recipient get buzzed?
• Are callers identified?