Call Barring Option Page

| Action | Code | |--------|------| | Bar All Outgoing | **33*PIN# | | Unbar All Outgoing | ##33*PIN# | | Bar All Incoming | **35*PIN# | | Unbar All Incoming | ##35*PIN# | | Bar Outgoing International | **331*PIN# | | Bar Incoming When Roaming | **351*PIN# | | Check Barring Status | *#<service code># (e.g., *#33# ) | Replace PIN with your carrier-provided barring password (often 0000 or 1234). Report prepared for general informational use. Actual availability and codes may vary by carrier and country.

1. Executive Summary Call Barring is a supplementary service offered by telecommunications network operators and mobile device manufacturers that allows users to restrict specific types of incoming or outgoing calls. It serves as a security, cost-control, and productivity tool, distinct from Caller ID blocking or Do Not Disturb modes. The service can be network-based (controlled by the carrier) or handset-based. 2. Definition and Core Purpose Call Barring (also known as Call Blocking, Call Restriction, or Fixed Dialing Number) prevents certain calls from being connected. Unlike call forwarding or call waiting, which manage calls, call barring actively rejects calls based on predefined rules. call barring option