Transfer of OAM (Operations, Administration and Maintenance) information for reserved and permanent services may be provided via a D-channel in another interface structure.

用于预留和永久业务的OAM信息的传递可以通过在其他接口结构中的一个D信道传送。

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Transfer of OAM (Operations, Administration and Maintenance) information for reserved and permanent services may be provided over a D-channel in the same or in another interface structure.

用于租用和永久业务的OAM信息的传递可以通过在其它接口结构中的一个D信道传送。

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An operator needs to decide on a network convergence strategy based on the existing network structure, Operations Administration and Maintenance (OAM) system, and business mode.

电信运营商需要结合自身网络结构、运维体制、业务运营模式等作出规划分析，找出适合自己的网络融合之道。

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