"don't talk a lot" - and "First 5 GB at up to 4G Speeds" - on a smart phone this is somewhat confusing. I talk a lot - 2-3 hours/day, typically conference call

"don't talk a lot" - and "First 5 GB at up to 4G Speeds" - on a smart phone this is somewhat confusing. I talk a lot - 2-3 hours/day, typically conference calls, but also with family, friends - and I'm trying to recall the last time I used any of my "Minutes" with my telco. Skype and Whatsapp get used a lot on my phone @ 8kilobytes/second (=30 megabytes/hour, 1.8 Gigabytes/month @ 2Hours/day talking)