3 Foreign Carriers Illustrate Differences in Cellular Offerings

摘要

In the previous edition of Voice Report, we broke down the advantages and disadvantages of dual-mode phones vs. native SIM cards. But here's another complication to employing the services of a wireless carrier in another country. About 600 carriers provide cellular services globally, estimates Joe Schmidt, senior consultant at Washington, D.C.-based TechCaliber Consulting, but - to make things interesting for telecom managers - few employ the same payment methodologies or rate structures.