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by ndrarmst 3945 days ago
(author here) I didn't have a chance to test how the VPN works, but even if they were using MPTCP the switch wouldn't necessarily be seamless.

Especially how they are using it now - which hands over a Wi-Fi call (which is data) - to a cellular voice call (not data). It's a subtle point, but calls over cellular are not data, so they are not using TCP/UDP/MPTCP/etc.
2 comments
toomuchtodo 3945 days ago
> but calls over cellular are not data

Does this change with VoLTE?

https://en.wikipedia.org/wiki/VoLTE

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ndrarmst 3945 days ago
Yes - with VoLTE, calls are also data.
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edude03 3945 days ago
I see, for some reason I thought it was Voice over IP tunnelled to google via VPN (over wifi or LTE). My mistake.
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ndrarmst 3945 days ago
Exactly. They are doing VoIP over Wi-Fi (VoWiFi), but not VoIP over 3G/LTE (which is VoLTE if you follow certain standards).
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