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Termination rates are the charges which one telecommunications operator charges to another for terminating calls on its network. Traditionally three models of charging these fees are known: calling party pays (CPP), bill and keep (BAK, peering), receiving party pays (RPP). == Explanation == For example, a customer of Operator A wishes to call a friend who has an Operator B mobile. Operator A will charge the customer a fee per minute (the retail charge) for this call. Operator B will charge Operator A a fee for terminating the call on its network. This termination rate therefore forms part of Operator A's cost of providing the call to its customer. Termination rates may be commercially negotiated or may be regulated. A range of approaches can be used to regulate rates. International benchmarking or cost models such as a LRIC cost model are the most common approaches. Historically there was and in some countries still is much debate about the best level for interconnection rates. Some argue that approaches based on models do not take into account real world risks and costs and suffer, among other things, from survivorship bias (they consider that risk can be assessed by looking only at the returns of surviving companies) and therefore underestimate the true level of risk. Another concern is based on Real Options. This considers the benefit that is extinguished from the moment that an investor chooses to invest and suggests that the loss of this right to invest should be taken into account when looking at the expected returns on investments made. The fundamental principle of any telecommunications network is to allow calls originating from a subscriber A to reach a subscriber B, whether on the same network or on another network, commonly known as “any to any connectivity”. In more technical terms, traffic, originating from Subscriber A is terminated at a point of destination, Subscriber B, and in order to allow for traffic to be routed and terminated between different operators, “interconnection” must be established. Interconnection allows for calls placed by a subscriber in one network to reach a subscriber in another network. Such a call is “terminated” in the destination network. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Termination rates」の詳細全文を読む スポンサード リンク
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