JapaneseGlossary
GSM
Global System for Mobile Communications. A second-generation mobile communication system that is used worldwide, including Europe, Asia and North America. The frequency band is 900 MHz, 1800 MHz or 1900 MHz, depending on the country.
About us
- INDEX
- Company Overview
- DOCOMO's Vision
- Operating Data
- Organizational Structure
- Management Team
- Global Presence
- Corporate Social Responsibility
- Code of Ethics
- Events Calendar
- Facts & Figures
Press Center
Services
Technologies
Investor Relations
Features
Links
