Traveling outside US

Calling from outside the U.S.The international rates listed below apply to calls placed while in the U.S. However, Consumer Cellular devices will not be able to connect to our cellular network outside of the U.S. While traveling internationally, we recommend powering your phone off or placing a smartphone into airplane mode.

 Here’s a tip for smartphone users: while in airplane mode, connect to a Wi-Fi network and use an App like Google Hangouts, Skype or FaceTime (for iPhone). These apps allow you to make voice or video calls back to the U.S. at no charge. Testing this functionality before leaving the country is also recommended

I suggest using an App called Signal. The downside is you and your called need Signal to work. It does work over WiFi. The key is to turn on Airplane mode and leave it on and turning on wifi mode and finding a WiFi connection. WiFi is universal world wide. 

Make sure you stay in Airplane Mode until you are back in US cellular service area.

You can also use FaceTime Audio but again both people need an Apple device.

Roy Frost

Cellular 

CELL-PHONE TECHNOLOGY

Wireless phones which receive their signals from towers. A cell is typically the area (several miles) around a tower in which a signal can be received.
Cell phones provide an incredible array of functions. Depending on the cell-phone model, you can:
• Store contact information
• Make task or to-do lists
• Keep track of appointments and set reminders
• Use the built-in calculator for simple math
• Send or receive e-mail
• Get information (news, entertainment, stock quotes) from the internet
• Play games
• Watch TV
• Send text messages
• Integrate other devices such as PDAs, MP3 players and GPS receivers

A cell phone is a full-duplex device. That means that you use one frequency for talking and a second, separate frequency for listening. Both people on the call can talk at once.
Division of a city into small cells allows extensive frequency reuse across a city, so that millions of people can use cell phones simultaneously. 

Cell phones operate within cells, and they can switch cells as they move around. Cells give cell phones incredible range. Someone using a cell phone can drive hundreds of miles and maintain a conversation the entire time because of the cellular approach. Each cell has a base station that consists of a tower and a small building containing the radio equipment.