#phone system roi

Outdated Phone System Costs You Customers in 2026

Outdated phone system costs go far beyond repair bills, missed calls, dropped connections, and legacy line fees silently drain $50,000–$130,000 per year from a typical 10-person SMB. With AT&T ending copper PSTN support across 20+ states, 2026 is the year inaction becomes a liability. Use the revenue-leak formula inside to calculate your exact number.