VOFR? Voice Over Frame Relay?

帧中继语音传送?。

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Frame Relay Bearer Service?

帧中继运载服务FRBS ？

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Frame Relay Switch Node?

帧中继转换节点FRSN ？

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Frame Relay Switch?

帧中继转换FRS ？

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Frame Relay Engine?

帧中继引擎FRE ？

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One day it is a frame relay switch, the next it is your ISDN router.

这一天是帧中继交换机，这是你们未来的ISDN路由器。

youdao

One day it is a frame relay switch, the next it is your ISDN router.

这一天是帧中继交换机，这是你们未来的ISDN路由器。

youdao