If you have a smartphone you can get a app that blocks spam calls. Such as "Call-TM Check" many phones also have a feature that silences unknown callers.
If it does not connect within less than a minute their could be a problem. Make sure the phone is not carrier locked, try it in a different phone and make sure you are in an area that has service.
If you have a smartphone you can get a app that blocks spam calls. Such as "Call-TM Check" many phones also have a feature that silences unknown callers.
For data speeds it really depends what you are using it for. If you are doing heavy streaming 4G will be a lot faster. Plans with 3G speed may reach download speeds of up to 3 Mbps, and plans with 4G speed may reach download speeds up to 100 Mbps.
