开始计时的时间点 是什么意思
多数旅游方案是在境外首次连上网络时才开始计时，所以在家先装好是安全的。不过也有方案是一安装就开始计时。
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| Common misunderstanding | What to understand instead |
|---|---|
| Activation type | Recommended timing to buy and install |
|---|---|
常见问题
Does validity start counting the moment a plan is bought?+
Not always. Most traveller plans start counting validity only once the device makes its first connection to the destination network, though some plans start from the profile's issue date instead. Confirm which applies on the plan page before buying.
Is it safe to install the profile at home before travelling?+
It is safe for a first-connection type plan, since installing only saves the profile onto the device — validity does not start counting until an actual connection is made to the destination network.
How can it be known which type a plan under consideration is?+
Read that plan's own detail page, usually under terms of use or that plan's specific frequently asked questions. If still unclear, message us on LINE at https://lin.ee/skDPoNx or email esimonline.asia@gmail.com so the team can confirm it.
If a plan is issue-date type, when should it be bought?+
It should be bought and installed as close to the actual departure date as possible, since every day that passes before reaching the destination is a validity day lost with no benefit.
Does a regional or global plan have a separate activation clock per country?+
No. Validity counts according to the type stated for the plan as a whole. Crossing a border mid-trip does not restart or pause the countdown in any way.
If the exact departure date is not yet certain, which type of plan should be chosen?+
A first-connection type plan offers more flexibility, since it can be bought and installed ahead of time without the risk of expiring before it is actually used.