Information on International Calling from Wireless Providers, 
VoIP Services, and Smartphone Manufacturers 
Information on wireless providers furnished by CTIA – The Wireless Association.
Wireless Providers
AT&T:
· There are a number of different resources for customers planning to use their wireless 
devices while traveling internationally.  See www.att.com/global.  This site includes 
information on how to get the best international voice and data rates based on 
destination, and offers tips and tutorials for customers traveling abroad, including:
o Know Before You Go: 
http://www.wireless.att.com/learn/international/roaming/know-before-you-go.jsp  
o Verify Rates: 
http://www.wireless.att.com/learn/international/roaming/international-roaming.jsp
o Travel Guide: http://www.wireless.att.com/learn/international/roaming/travel-
guide.jsp
o FAQ on International Roaming: 
http://www.wireless.att.com/learn/international/roaming/faq.jsp
· Customers may call customer service at any time to block international roaming.
· iPhone users can track data usage overseas by using the device’s Usage Tracker 
option.
Sprint:
· Information about travelling internationally with a Sprint phone: 
http://shop.sprint.com/en/services/worldwide/travelabroad_sprint.shtml
· Information on International Voice:           
http://shop.sprint.com/en/services/worldwide/internationalcoverage.shtml
· Information on International Data:            
http://shop.sprint.com/en/services/worldwide/intl_data_services_coverage.shtml
T-Mobile:
· There are several ways to check balances.
o Using the phone itself (#min#, #msg#, #bal#)
o Calling into IVR (voice recognition service)
o Calling customer service
o Going into dealer or store
o Internet (www.t-mobile.com)
· Users are able to monitor Data Use.
o Customer’s home page is free
o Warning message is sent the first time a customer accesses the web.  Message 
also sent to account holder: “CAUTION: Charges while roaming are higher for 
voice, web, email & applications.”
o For international roaming and general information: Go to www.t-
mobile.com/international and see “Calling from other countries."
o For information on what to do before you travel, go to "Things to know before you 
go" under "Calling from other countries" on the same website.
Verizon Wireless:
· Access country-specific voice, text, and data rates from a number of sources:
o Website – Verizon Wireless provides customers a single website where they may 
access the voice, text, and data rates for almost every country as well as other 
information regarding international services. (www.verizonwireless.com/global)
o Quarterly Customer Booklet – Verizon Wireless publishes a quarterly consumer 
booklet containing extensive information about the companies devices, services, 
and plans, entitled “Your Guide,” that is available to all customers who activate or 
renew in stores or via telesales. “Your Guide” provides information on how to 
obtain service and rates while placing or receiving calls or data in foreign 
countries.
o Customer Service – Customers can contact the company’s Customer Service via 
a toll-free number to obtain information about service options available to them 
while traveling. 
· Real-time alerts regarding international usage.
o Verizon Wireless sends a free text message to customers when they turn on their 
phone in a foreign country welcoming them to the country, providing dialing 
instructions for calling from that country back to the U.S., and sending them the 
24/7 customer service number for global customers.  
o If the customer is located in a CDMA country, Verizon Wireless also provides the 
customer with the data roaming rates for that country.
o Mobile Broadband customers using VZ Access Manager and operating their 
device outside the U.S. must click-through a disclosure screen providing 
information about potential data charge rates before being allowed to connect. 
· Verizon Wireless allows customers to control their international data usage by shutting 
off data services on their handset, thereby preventing international data roaming. 
Smartphones
Blackberry
· e-office Mobile Data Alerter allows consumer to monitor data usage and also allows 
consumer to set up specified alerts based on usage. Built in is an application viewer as 
well, so the consumer can see what applications are currently running. 
(http://appworld.blackberry.com/webstore/content/1807)
· Mobile Minutes Tracker Premium 
o Current minute balance 
o Rollover minutes 
o Data plan balance
o SMS use
o Bill details
o Previous payments
o Overcharge protection alerts
o http://appworld.blackberry.com/webstore/content/2617
iPhone
· MyWireless Application to track minute, message and broadband usage: Go to 
www.itunes.com/, go to the iTunes Store at the lower right of the page, and search "att 
mywireless mobile”
· Travel tips
o Turn data roaming “OFF”: Be sure to download and install the latest version of 
iPhone software from iTunes.  To turn data roaming “ON/OFF” tap on Settings > 
General > Network > Data Roaming
o Utilize Wi-Fi instead of 3G/GPRS/EDGE: Wi-Fi is available in many international 
airports, hotels, and restaurants to browse the web or check e-mail.  You can 
also use VoIP services (e.g. Skype) to make calls.
o Turn fetch new data “OFF”: Check e-mail and sync contacts and calendars 
manually instead of having the data pushed to your iPhone automatically.  This 
way you can control the flow of data coming to your iPhone.  To turn off the Auto-
Check functionality tap on Settings > Fetch New Data, change Push to “OFF” 
and select to Fetch Manually.
o Consider purchasing an international data package.
o Reset the usage tracker to zero: When you arrive overseas, access the usage 
tracker in the general settings menu and select reset statistics.  This will enable 
you to track your estimated data usage.  To reset Usage Tracker to Zero, tap on 
Settings > General > Usage > Reset.
o Do not download video on your iPhone or lap top while traveling.  This will help 
you avoid some of the most expensive data charges.  If you want to stream a 
movie, music video, or TV show on your phone, go to a Wi-Fi hotspot and 
download movies over that network.
Droid/Android
· Netcounter Application keeps track of data usage on mobile phone and provides for 
exceeded limit alerts.
http://www.droidapps.org/netcounter-monitor-data-usage-on-the-droid/
· For T-Mobile Users
o T-Mobile My Account App for Android: allows users to track minutes and 
messages used/remaining and bill summary at: http://www.androidtapp.com/t-
mobile-my-account
o Minutes Tracker for Android: allows user to keep track of T-Mobile cellular 
minutes, available at: http://www.androidtapp.com/minutes-tracker
o “Free My Account” application allows T-Mobile users to choose to receive free 
minutes usage alerts, over-limit alerts, payment reminders, billing summaries, 
etc.: 
http://www.androidzoom.com/free_android_applications/my%20account?p=10