Using Data left on phone sim in home router

[Viola]

Hello,

I have plenty data left on my simcard every month, as I have two sim cards but I only use one on my phone. 

I also hve 4g router at home ( Huawei 4g B525) and I was wondering if I could put one of my phone sim cards to the router and use my monthly data allowance via router?

Would internet from my sim card work with router? 

I have seen a post saying that I couldn't use my data monthly allowance if put in into my router but I will charged for every MB i use?

Could anyone help me with this please?

[MI5 · Accepted solution]

Hi @Viola 

Yes, if you have data remaining on the sim, you can use it in any device.

[Viola]

Thanks. Just want to show you the post i was referring to:
http://service.o2.co.uk/IQ/SRVS/CGI-BIN/WEBCGI.EXE?New,Kb=Companion,question=ref(User):str(Business)...

[MI5]

I've never been charged and I've never heard of that before either.