How Much Does a POTS Line Cost for Small Businesses?

Even in today’s digital-first communication world, many small businesses still rely on POTS lines (Plain Old Telephone Service) for dependable voice communication, fax machines, alarm systems, and emergency backup connectivity. But one of the most common questions business owners ask is: How much does a POTS line actually cost?

The answer depends on several factors, including location, provider, number of lines, and added features. Understanding these costs can help small businesses decide whether to maintain traditional phone service or transition to modern alternatives.

Average Monthly Cost of a POTS Line

For small businesses, a single POTS line typically costs between $30 and $70 per month. However, this base price can increase depending on additional services and regional pricing differences.

In some areas with aging infrastructure or reduced competition, monthly costs can exceed $80 or more per line. Businesses operating multiple lines will naturally see higher monthly expenses.

Installation and Setup Fees

Before monthly billing begins, businesses may also face installation charges. These can vary widely but generally include:

• Installation fee: $50 to $150 per line
• Service activation fee: $25 to $75
• Internal wiring or technician visits (if needed): additional costs

If a building already has existing copper wiring, setup costs are usually lower. However, new installations in older or renovated buildings may require more extensive work.

Additional Costs to Consider

Beyond basic service fees, small businesses often encounter extra charges such as:

1. Long-Distance Calling Fees

Traditional POTS plans may charge per-minute rates for long-distance or international calls unless bundled plans are purchased.

2. Caller ID and Voicemail

Basic features are often included, but advanced features may add $5–$20 per month.

3. Maintenance and Repair Fees

While rare, repairs to copper lines or internal wiring can lead to service charges.

4. Taxes and Regulatory Fees

Telecom taxes and government surcharges can add 10%–25% to the total monthly bill.

Why POTS Lines Are Still Used Despite the Cost

Even though POTS lines are often more expensive than modern internet-based systems, many small businesses continue using them due to their reliability.

Key reasons include:

• Works during power outages
• Stable call quality
• Compatibility with legacy equipment (fax, alarm systems, elevators)
• Minimal dependency on internet connectivity

For businesses in healthcare, hospitality, or security, these advantages often outweigh the higher costs.

POTS Line vs VoIP Cost Comparison

When compared to VoIP systems, POTS lines are generally more expensive:

• POTS Line: $30–$70+ per month per line
• VoIP Service: $10–$30 per user per month

VoIP systems also include advanced features like video calls, call analytics, mobile apps, and CRM integration—often without additional fees.

However, VoIP depends on stable internet service, which may not be ideal for every business.

Hidden Long-Term Costs

One major consideration is the long-term expense of maintaining copper-based infrastructure. Telecom providers are gradually phasing out POTS networks, which may lead to rising costs and limited availability in the future.

This makes it important for small businesses to evaluate not just current pricing, but future sustainability.

Final Thoughts

The cost of a POTS line for small businesses may seem straightforward, but it includes multiple layers of pricing—monthly fees, installation, features, and taxes. While traditional phone lines remain reliable, they are often more expensive than modern alternatives.

For many small businesses, the decision comes down to balancing reliability with cost efficiency. As communication technology continues to evolve, evaluating alternatives like VoIP or hybrid systems may help reduce expenses while maintaining dependable connectivity.