Verizon's actions could potentially cause T-Mobile to increase prices for its customers.

Such practices are not sustainable long-term. T-Mobile has recently removed plans that included taxes and fees. The company altered its price lock guarantees, giving them defined end dates instead of indefinite terms. Also, the T-Life app's growing role has employees worried about potential store closures.

These changes are likely aimed at boosting profits amid increasing industry competition.

The Upsides and Downsides of Competition

The report indicates investors worry T-Mobile could be drawn into a price war with Verizon, creating stock market instability. This could benefit consumers in the short term as the companies lower prices to compete.

However, the long-term effects might include T-Mobile, and possibly Verizon, raising prices for current services. Wireless pricing is already a concern for Americans, and it could worsen.