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US09077818B2 Remotely migrating from a first service to a second service 有权
从第一个服务远程迁移到第二个服务

Remotely migrating from a first service to a second service
Abstract:
A system, method, and computer readable medium for remotely migrating from a first service to a second service, comprising sensing a ring wire state, sensing a tip wire state and switching a switch device to a direct current termination based upon a difference between the ring wire state and the tip wire state.
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