请问HN：为我的孩子们获取固定电话的最佳方式是什么？
如果你和我一样是个家长，也许你会理解这一点。我的孩子们在手机上花费的时间实在太多了。
随着新学年的开始，我想在家里增加一部“固定电话”，这样我就可以告诉他们“设备在8:30关闭！如果你急需打电话，可以使用这部固定电话。”
我希望这能让他们不再“只是想发个短信”，然后被智能手机的诱惑吸引，直到深夜，这样会影响他们脆弱的睡眠模式。
当然，我其实并不想要一部传统的固定电话。我想要一部通过Plivo或Twilio连接的SIP电话。我一直在eBay等网站上寻找一款便宜的无绳电话，方便我与Plivo轻松连接。
不过，我对SIP电话、DECT电话、蓝牙和WiFi电话之间的区别感到困惑，不知道这些是否都可以与Plivo/Twilio一起使用。
例如，这个链接：
https://www.voipsupply.com/voip-phones/cordless
有没有人对此有建议？我需要在我的某台机器上运行PBX吗？
我认为最便宜的方式就是直接连接到Plivo。按需付费的计划似乎是每分钟约0.005美元的入站费用，0.01美元的出站费用。这对于保持我的理智来说，绝对是值得的。
https://www.plivo.com/pricing/
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If you are a parent like me, perhaps you'll understand this. My kids spend way too much time on their phones.<p>As we start the new school year, I want to add a "land line" to my house so I can tell them "devices are off at 8:30! If you urgently need to make a call, go ahead and use this land line."<p>I am hopeful this will mean they don't "just need to text someone" and then get sucked into the void of their smart phone addictions until all hours of the night, damaging their fragile sleep patterns.<p>Of course, I don't really want a land line. I want a SIP phone that connects via Plivo or Twilio. I've been looking on eBay and others to find an inexpensive cordless version that I can easily connect to Plivo.<p>I'm confused, however, what the difference is between a SIP phone, a DECT phone, Bluetooth and a WiFi phone, and if those can all be used with Plivo/Twilio.<p>For example this link:<p>https://www.voipsupply.com/voip-phones/cordless<p>Anyone have suggestions on going down this path? Do I need to run a PBX on one of my machines?<p>I figure the least expensive way is just direct to Plivo. The pay-as-you-go plan seems to be about $0.005 a minute inbound, $0.01 a minute outbound. That's easily worth my sanity.<p>https://www.plivo.com/pricing/