The WRP400 is interoperable with common telephony equipment such as voicemail, fax, and interactive voice response systems.
与常见的WRP400电话设备互操作，如语音信箱，传真，交互式语音应答系统。
The SPA8000 is interoperable with common telephony equipment such as voicemail, fax, private branch exchange (PBX), and interactive voice response systems.
与常见的SPA8000电话设备互操作，如语音信箱，传真，专用分支交换（PBX）和交互式语音应答系统。
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