Vodafone Sure Signal - does data go through my employer's network

I dont get good reception in my office due the height of the tower I am in and therefore thinking of buying a Vodafone Sure signal adapter.

Does anyone in the UK with specialist telecoms technical knowledge (rather than opinion please as I need this to be 100% correct), know whether the use of a Vodafone Sure signal adaptor, when plugged into a corporate network, will end up routing both phone calls and phone data via the company's network?

My obvious thoughts are yes it does, but I have spoken to different Vodafone call centre staff who are adamant that it does not and that the signal simply somehow just boosts the signals.  Sounds rubbish to me but then maybe I'm not technically minded in this particular area enough to understand why it doesn't.
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KimputerConnect With a Mentor Commented:
If data is encrypted, the employer can't really track it. They can have a suspicion you're doing something though (because they see data coming and going from Vodafone servers).
Secure connection or VPN, the difference is too technical anyway, but both just make sure the exact data sent and received are for your eyes only.
KimputerConnect With a Mentor Commented:

To use a Sure Signal (one-off cost £69) you’ll need a Vodafone mobile phone, voice-enabled tablet or dongle connected to our network, plus a broadband connection with a minimum upload and download speed of 1Mbps.

Connecting your Sure Signal

Plug one end of the Ethernet cable into your Sure Signal
Plug the other end of the cable into the Ethernet port on your broadband router

Technically, yes, you will route your calls and phone data through the company's network. The call centre probably just wanted to ease your mind about data snooping, as the connection is probably a secured one.

If it really wasn't routed, and "boosted", the broadband connection wouldn't be a requirement. Also easy to test, have a working  Sure Signal, then disconnect the Ethernet/network cable. Suddenly you won't have voice/data anymore.

Another thing:

Vodafone Sure Signal creates a 3G signal in your home. It’s ideal if you live in an area where it can be difficult to get mobile reception, like a rural location or a basement flat. It fits into a normal plug socket so doesn’t take up much space.

If it was a "booster", the requirement would be different. It would say "please be sure there's one signal bar on your 5 signal bar icon on your phone". Without a signal, there's nothing to "boost". Boosting only works when you have a weak (or better yet, a stable) signal.
u587162Author Commented:
So Suresignal creates a VPN?
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KimputerConnect With a Mentor Commented:
That, I can't tell unless I have the device in my hands AND do some intricate data packet inspection. Probably it just sets up a secure connection, if it's VPN, or just normal HTTPS traffic, I can't be sure.

The only statement I found was:

Are my calls secure using Vodafone Sure Signal?

Yes, all traffic carried through the Sure Signal service is encrypted to maintain the high standards of security you expect from Vodafone.

u587162Author Commented:
Whether it is a secure connection or VPN (what's the difference?), does that mean that websites cannot be tracked by the employer?
u587162Author Commented:
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