What is a family mobile plan?

It's a way to put several people's connections on one account so you manage and pay for them together. In practice that takes a few forms: a shared postpaid family plan, where multiple SIMs share a data pool and unlimited calls on one bill; a coordinated multi-SIM prepaid setup, where you manage several prepaid numbers together; add-a-member SIMs, where extra family members join an existing account for a small add-on fee; and convergence bundles, which fold mobile, home broadband and DTH into a single household bill. The goal is fewer bills, easier management, and usually a lower cost per person than everyone holding fully separate plans.