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ROAMING

ROAMING. ABHISHEK KUMAR 0901222017 ECE. Contents. 2. Home & Visited Network. 1. Introduction. 3. Roaming Agreements 4. The Roaming Process. 5. Tariffs 6. Types of Roaming. Introduction.

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ROAMING

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  1. ROAMING ABHISHEK KUMAR 0901222017 ECE

  2. Contents 2. Home & Visited Network 1. Introduction 3. Roaming Agreements 4. The Roaming Process 5.Tariffs 6. Types of Roaming

  3. Introduction In wireless telecommunications , roaming is a general term referring to the extension of connectivity service in a location where the service was registered. Roaming ensures that the wireless device kept connected to the n/w, without losing the connection. The term “roaming ” originates from GSM sphere.

  4. Continue….. Traditional GSM roaming is defined as the ability for a cellular customer to automatically makes and receive the voice calls ,send and receive data ,or other services when travelling outside the coverage area of the home n/w , by means of using a visited n/w.

  5. Home & Visited Networks The Differentiation between Home n/w & Visited n/w is technically given by the type of subscriber entry in a specific n/w . If a subscriber has no entry in the home subscriber register of the n/w , the required subscriber data must first be requested by the visited n/w .

  6. Roaming Agreements The legal roaming business aspects negotiated between the roaming partners for billing of the services obtained are usually stipulated in so called Roaming Agreement. The GSM association broadly outlines the content of such roaming agreements in standardized form for it’s members. Sim Card

  7. The Roaming Process When the mobile device is turned on , this new "visited" network sees the device, notices that it is not registered with its own system, and attempts to identify its home network. If there is no roaming agreement between the two networks, maintenance of service is impossible, and service is denied by the visited network.

  8. Continue…. The visited network contacts the home network and requests service information about the roaming device using the IMSI number. If successful, the visited network begins to maintain a temporary subscriber record for the device.

  9. Tariffs Roaming fees are traditionally charged on a per-minute basis and they are typically determined by the service provider's pricing plan. Several carriers in the both United States and India have eliminated these fees in their nationwide pricing plans. All of the major carriers now offer pricing plans that allow consumers to purchase nationwide roaming-free minutes.

  10. Types Of Roaming Regional Roaming National Roaming International Roaming Permanent Roaming

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