How to add multiple static IP addresses?

[wireless]

Hi everyone,
We have a small office and purchase 5 static IP address from Telus business.
The issue is that, we cannot add these 5 static IP addresses to our Router (happened to be Edge Router) as Telus does not support this way.
Tech support from Telus told us that, we should put a Switch after Telus modem and before our Router...
Is there anyone who has done this before?
Thank you


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