Is this a Verizon branded smartphone? Are you trying to using overseas or in the states? Also the plan associated with the MiFi doesn't have a voice and text plan with it so it wouldn't be provisioned correctly to use with a phone.
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.
Smartphone is a Motorola purchased in the UK where apparently (I'm told) all phones are unlocked. The idea is to use this in the US not as a phone but to access the internet while traveling when away from the computer. (i.e. google maps, travel data, info, etc.) I assume using this overseas is not an option based on the cost for data. Also, in many other countries I am told I can buy a SIMS to use when I'm in that country.