Yunteng, Tengda, and Tengfei are a bit outdated, and they all have the same name as our Internet cafes.
Since the poster is a mobile phone store, he should give him a relevant name!
For example, the copycat "Tenxin", or the awesome "Lao Niao Communication Network", etc.
Or the Daxia mobile phone! When others ask for advice on the forum, they always ask "veterans" or "heroes"!