The first mobile service started in the late 1970's
Advanced Mobile Phone Service was created in 1983.
Mobile phone upgrade depend on what you are looking for in a phone and what kind of services you are needing. Around here, ATT is a great place to get mobile phones. http://www.wireless.att.com/cell-phone-service/get-started/how-to/upgrade-your-phone.jsp
1997 - Mobile phone service was introduced under the brand label DhiMobile. Initially this service was provided over Advanced Mobile Phone System. 1999 - Mobile phone service's platform changed to GSM
That depends on your mobile phone service provider, your e-mail service provider, and/or the make and model of your phone.
Yes, T-Mobile offers international roaming in Mexico for phone service.
perasonic is the first manufacture of mobile phone
Mobile phone service companies
You can't get a T Mobile service on a phone that's not T Mobile unless you get it unlocked. Once the phone is unlocked, you can use your T Mobile SIM card on it or any other GSM SIM cards worldwide.
Ask your service provider ! They will have your call records going back to when you started using them.
Usually it means it's free to call another cell-phone, or mobile phone, yet it's usually within the companies service only. Ask about that when looking to buy a plan.
They are out of service
It varies for all phones, you would have to check with the mobile phone service provider