Full Form of CUG

What is CUG?

CUG, or Closed User Group, is a telecom service provided by operators such as BSNL and Airtel that allows a predefined set of users to communicate with each other at reduced rates or for free. Commonly adopted by Indian corporate offices, government departments, and educational institutions, CUG plans enable unlimited or high-volume calling within the group while limiting or barring external calls. The group is managed by an administrator who adds or removes members. In India, CUG is widely used by banks, IT companies, and railways to control communication costs and ensure internal connectivity. It is especially popular among field staff who need to stay in touch with headquarters without incurring high mobile bills. The concept originated from landline PBX systems but now extends to mobile connections via dedicated SIM cards. For exams like IBPS or SSC, understanding CUG is important as it appears in banking awareness and telecom sections. CUG services often include features like zero rental, free intra-group calls, and minimal outgoing call charges. The technology relies on a private numbering plan that isolates the group from the public network, enhancing security and privacy. In essence, CUG streamlines internal communication while keeping expenses predictable.

CUG का फुल फॉर्म

Example

The government office issued CUG SIM cards to all its employees so they can call each other without any charge.

CUG — frequently asked questions

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