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TECHNICAL ASPECTS OF INTERCONNECTION

ITU/BDT Arab Region al Workshop on “Interconnection and Price Regulation” Muscat - Oman, 03-06 April 2005 Dr. Rochdi ZOUAKIA. TECHNICAL ASPECTS OF INTERCONNECTION.

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TECHNICAL ASPECTS OF INTERCONNECTION

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  1. ITU/BDT Arab Regional Workshop on“Interconnection and Price Regulation”Muscat - Oman, 03-06 April 2005Dr. Rochdi ZOUAKIA

  2. TECHNICAL ASPECTS OF INTERCONNECTION

  3. A user connected to the network of an alternative local loop operator at city 1 calls a user connected to fixed operator network at city 2 2 Example: Network of an alternative local loop operator at city 1 Interconnection point City 1 City 2

  4. Direct interconnection offer : call termination : 2 1 New New Operator Operator TS TS New 3 LS Operator 1 Single transit 2 Double transit 3 Intra Local Switching

  5. Indirect interconnection offer :call collection : 2 1 New New Operator Operator TS TS New 3 LS Operator 1 Single transit The customer dials a prefix 3 Intra local switch 2 No Double transit offer

  6. CARRIER SELECTION • What is the meaning of « carrier selection » ? • Carrier selection is a mechanism that permits customers, while subscribing to a specific local access network operator, to choose between telecommunications carriers for carrying part of their calls. • Call by call selection : the user has the possibility of choosing a carrier on a per-call basis while dialling. The choice is usually indicated by a carrier selection prefix dialled before the sequence of digits which is used to reach the called party without carrier selection. • Pre-selection : a carrier is used which the customer has chosen beforehand. The choice of this carrier applies to each following call and the carrier selection prefix is not needed.

  7. 1 3 A user connected to the fixed operator network at City 1 dials a prefix in order to call a user connected to the fixed operator network at city 2 Exemple: New operator Network of the selected operator Interconnection point at city 1 New operator The customer dials a prefix LS at City 2

  8. Number Portability (1) Before After Fixed operator switch Other operator Customer of the fixed operator Carried customer

  9. Number portability (2) • Local portability : the possibility to change the telecommunication operator with keeping the same phone number providing that the customer do not change its location. • The interconnection reference offer should include an offer allowing number portability. • Generalized portability : operators should have an offer allowing customers to keep the same number even if they change location (this require the determination of number reserved to this purpose)

  10. BTS BSC MSC IS  IT TS NTT JT RCU NTT LS TS NTT LTT NTT LS LS LS JT JT JT RCU JT RCU RCU  RCU   

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