Ask HN：为什么这么多服务拒绝使用 Google Voice 号码注册？
5 分•作者: electric_muse•9 个月前
我注意到，现在越来越多的公司在创建账户时拒绝接受 Google Voice 号码。
我公司的主要联系电话就是 Google Voice，它会将呼叫转接到我的手机上；我从不透露我的手机号码。但这导致我无法使用某些服务和产品（例如 Vercel、DocuSign 等）。
我很好奇背后的原因。这主要是技术原因（防止垃圾邮件、投递问题），还是出于商业驱动（运营商对 VoIP 的抵制），或者仅仅是为了轻松屏蔽一次性账户？会不会有更阴暗的情况，比如在后台查询我的“真实”信息，如果我提供了我的手机号码？
此外，如果有人了解公司如何大规模地从技术上检测和过滤 VoIP 号码，我也很想了解这方面的信息。例如，通过 Twilio 查询哪些信息会导致号码被拒绝？我猜想这是否来自 Twilio 线路类型智能（或类似功能）的“类型”？
https://www.twilio.com/docs/lookup/v2-api/line-type-intelligence
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I’ve noticed that more and more companies refuse to accept Google Voice numbers when creating accounts.<p>My company's main line is a Google Voice that forwards to my cell; I never give out my cell. But this is preventing me from using some services and products (Vercel, DocuSign, etc.)<p>I’m curious about the reasons behind this. Is it primarily technical (spam prevention, deliverability issues), business-driven (carriers pushing back on VoIP), or just an easy way to block disposable accounts? Is something more dystopian going on, like some kind of behind-the-scenes lookup of my "true" info if I provide my cell?<p>Also, if anyone has insight into how companies technically detect and filter VoIP numbers at scale, I’d love to understand that side too. E.g. what lookup info via Twilio causes a number to get rejected? I assume it is the 'type' from Twilio Line Type Intelligence (or equivalent)?<p>https://www.twilio.com/docs/lookup/v2-api/line-type-intelligence