Business Phone Lines
Dial Tone for Legacy PBX & Key Systems
If you have a legacy phone system or older PBX, we can provide Business Dial Tone.
As low as $20.49/month
Pricing excludes taxes, FCC fees, and any applicable local taxes.
Transparent, Flexible Pricing
Pricing & Plans
Choose the option that fits how your office runs—keep your existing system with dial tone, upgrade to Digital Voice Lines™, or explore Cloud PBX. Custom quotes available.
Key Services & Pricing
Digital Voice Lines™
Advanced SIP for Legacy & Grandstream PBX
Digital Voice integrates with many older phone systems as well as Grandstream PBX solutions.
Digital Voice Lines for Avaya, as low as $20.99
Taxes, FCC fees, and local taxes not included.
Cloud PBX Phone Solutions
Modern Phone System Options
From solopreneurs to companies with hundreds of employees—wide range of platforms.
Contact for quote
Obtain Quotes
Many products and services are based on a combination of elements. Reach out for a custom quote for your service.
Custom Packages
Carolina Phone Service offers business communications solutions built for your needs. We can assemble custom packages based on your organization’s size, sites, and call handling requirements.
Carolina Phone Service is owned and operated by VoiceOne PBX LLC. All prices shown reflect retail rates and do not include FCC fees, taxes, or applicable local taxes.