it depends on the phone. typically, no.
A wifi phone is just a phone that can use wifi. You would connect it to a wifi network to get a better signal for faster web browsing than a cell tower.
If your phone is wifi capable, yes.
Unless you can find room in the phone to add an wifi card and can hack the software to make it compatible, no.
It is not possible to use your cell phone if your phone is turned off. However, if the question means if you are no longer a Verizon customer and still have the phone with no SIM Card, than yes, you can still use your phones Wi-Fi even though you can not make calls.
Yes it is wifi compatible. Nearly every 4g phone uses wifi.
for sure, i use mine to make call
Wifi networks are really wireless internet networks. Smart phones need the internet to function, so naturally your phone is going to be searching for a wifi network to use.
It is important to have wifi on your phone because it costs money to use the 3G. You may not always have access to the 3G either, and if you don't you might have wifi access.
The one that have the wifi. Go to a theater and watch the movie and not use your phone.
your mobile needs a subscription to use net And YES you can use wifi if your mobile supports wifi
It will be free as long as you use it when you are connected to wifi.
No, unless the place you are at require a charge to use their Wifi, but normally it is a free service