When configured as Modem Type (S128) = 0, The P400 operates as a 400 MHz Licensed Narrowband modem.

当配置调制解调器类型为（S128）=0，P400是一个400 MHz许可窄带调制解调器。

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You guessed it... the first beta customer used only that type of modem.

您猜猜，第一个测试版的用户就使用了那个类型的调制解调器。

youdao

I once worked for a networking company that shipped a product to a beta test even though it was failing with one type of modem.

我曾经在一家网络公司工作过，该公司将一个产品进行了beta测试，尽管用某一种类型的调制解调器会失败。

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