Subscription Manager Data Preparation Plus
什么是 SM-DP+?
The server that delivers eSIM activation profiles. When your phone scans a QR code, it contacts the SM-DP+ server encoded in the QR, downloads the profile, and installs it.
如何 SM-DP+ travel.to 的物质吗?
Each carrier or eSIM provider runs (or contracts) an SM-DP+ server. travel.to's partner providers handle this layer — you never see it directly, but if eSIM activation fails it's often an SM-DP+ issue. The refund policy applies in that case.
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