Complex sentence: In 2004, the FCC reported logging more than 14,000 complaints (or 289 per million subscribers) against Cingular Wireless, the most common of which included number portability issues, over billing, poor customer support, and network reliability.
Split into simpler sentences: In 2004, the FCC reported logging more than 14,000 complaints (or 289 per million subscribers) against Cingular Wireless. The most common of which included number portability issues, over billing, poor customer support and network reliability.