What Is ISP

🌐 What Is a Service Provider?

• Definition: A service provider is a company that delivers communication services (internet, phone, data) to customers.
• Types:
  • ISP (Internet Service Provider): Provides internet access.
  • Telecom Provider: Offers voice, messaging, and data services over mobile or fixed networks

🧩 Internet Service Provider (ISP)

• Role: Connects users to the internet.
• Services:
  • Broadband (DSL, fiber, cable).
  • Wireless internet (Wi‑Fi hotspots, LTE/5G).
  • Email hosting, domain registration.
• Examples: Comcast, AT&T, Globe Telecom, PLDT.

📞 Telecom Service Provider

• Role: Provides communication services over telephone and mobile networks.
• Services:
  • Voice calls (landline, mobile).
  • SMS/MMS messaging.
  • Mobile data (3G, 4G, 5G).
  • International roaming.
• Examples: Verizon, China Mobile, Smart Communications.

⚙️ How They Work

1. Infrastructure: Build and maintain physical networks (fiber cables, cell towers, satellites).
2. Access: Provide customers with modems, SIM cards, or routers to connect.
3. Routing: Manage traffic between local networks and the global internet.
4. Billing: Charge customers for usage (data caps, call minutes, subscriptions).