QoS, but according to some concerns this should not be done by fast changes on the number and architecture of PoIs. Currently, most service providers are migrating towards IP networks. While voice traffic is internally carried over IP, interconnection is though still based on TDM and CS#7 technology. This exhibits elements of inefficiency as it leads to multiple conversions between packet and circuit based networks for traffic handles by two or more networks. As long as the current structure for interconnection with the several layers of points of interconnections remains, the call routing is inefficient. Another negative outcome is that the full benefits of NGN, including new service creation and the establishment of new business models are foreclosed. In order to increase the efficiency in the future, interconnection based on IP instead of TDM technologies will have to be implemented. As of today, the existing service providers have implemented TDM based interconnection. If these networks should migrate to IP interconnection, additional investments are required. Therefore, a balance has to be struck between one-time investments in the migration from TDM to IP interconnection on the one hand, and the potential static and dynamic efficiency gains to be realized from such a migration. As the costs are mainly to be borne by the legacy service providers, the incentives to migrate to IP interconnection are limited.
QoS, but according to some concerns this should not be done by fast changes on the number and architecture of PoIs. Currently, most service providers are migrating towards IP networks. While voice traffic is internally carried over IP, interconnection is though still based on TDM and CS#7 technology. This exhibits elements of inefficiency as it leads to multiple conversions between packet and circuit based networks for traffic handles by two or more networks. As long as the current structure for interconnection with the several layers of points of interconnections remains, the call routing is inefficient. Another negative outcome is that the full benefits of NGN, including new service creation and the establishment of new business models are foreclosed. In order to increase the efficiency in the future, interconnection based on IP instead of TDM technologies will have to be implemented. As of today, the existing service providers have implemented TDM based interconnection. If these networks should migrate to IP interconnection, additional investments are required. Therefore, a balance has to be struck between one-time investments in the migration from TDM to IP interconnection on the one hand, and the potential static and dynamic efficiency gains to be realized from such a migration. As the costs are mainly to be borne by the legacy service providers, the incentives to migrate to IP interconnection are limited.