Do you live in a house or an apartment building? Before buying anything I’d just check whether there’s any airtel equipment outside your home that does not have backup. Like, in my building, airtel has building/compound level equipment which only has the society’s genset as backup, no UPS. So even if i got a UPS for the router inside my home, I’d still have an outage for a few minutes every time the power is switched to genset.
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