1 - No, you cannot, The Home Phone Wireless is designed to work as a home phone, not a mobile, so the SIM is locked to only work in a Home Phone Wireless device. Even if you put the SIM in another phone that takes a standard size SIM, it won't connect to the network.
2 - Additional handsets need to be purchased from a Vodafone store. The Huawei F688 can only be paired with another F688 if you want them both to ring at once with the same number. The cost for this is $149.
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