Does Telecom have a signal tower for mobile phones?

Yes. But much less than mobile towers.

Telecommunications is a CDMA signal, so its signal towers are not much mobile, but they are found in every county, city and town. The coverage of telecommunications signal towers is relatively wide. One signal tower can cover 200Km, which is better than that of China Mobile and China Unicom. Wide coverage

Telecom currently uses the 815-825mhz frequency. This band is characterized by wide coverage and good signal penetration through walls. The coverage of a telecom base station is about five times that of China Unicom Mobile's 3G base station. This advantage allowed Telecom to quickly cover 3G signals with a small investment in the 3G era. However, this has become a shortcoming of Telecom in the 4G era. High network speed requires high frequency bands. It is estimated that Telecom’s base station investment in the 4G era will far exceed that of China Unicom.