Cloud Phone Service

Hosted VoIP for Modern Businesses

Replace your old phone system with a flexible, feature-rich cloud PBX. Get crystal-clear calls, business SMS, and powerful integrations — all managed from one portal.

Request a Demo 843-225-8570

Everything in One Platform

A complete business phone system without the complexity or the on-premise hardware.

Unlimited local & long-distance calling
Auto-attendant & call routing
Business SMS from your office number
Call recording & analytics
HIPAA-compliant options available
Work from anywhere — desktop & mobile apps
HD voice quality
Allsio AI integration
Add-On Feature
Allsio

Supercharge Your VoIP with Allsio

Add an intelligent AI virtual receptionist to your hosted VoIP service. Allsio answers calls, qualifies leads, routes callers to the right department, and handles FAQs — all without a live agent.

  • 24/7 AI call answering — never miss a lead
  • Natural language understanding
  • Seamlessly integrates with your existing extensions
  • Manage prompts from ai.charlestontel.com
Learn About Allsio
// Allsio in action
Caller

“I need to schedule an appointment for tomorrow.”

Allsio

“Of course! I can help with that. Are you an existing patient or is this your first visit?”

Caller

“Existing patient — John Smith.”

Allsio

“Got it, John. Let me transfer you to scheduling right now.”

Business SMS

Text your customers directly from your business phone number. No more using personal cell phones for business communication. Business SMS is included with your hosted VoIP service.

  • Send & receive texts from your business number
  • Web and mobile app access
  • Shared team inbox for group management
  • MMS support for images and media
  • Text history logged alongside call records

CloudMessage

Broadcast SMS for businesses. Send bulk text messages to customers, employees, or any list — appointment reminders, promotions, alerts, and more.

  • Bulk / broadcast texting campaigns
  • Contact list management
  • Scheduled message delivery
  • Delivery reports and analytics
  • Two-way conversation support
// Send SMS via REST API
POST /api/v1/sms
{
"to": "+18435551234",
"message": "Your appointment is confirmed!",
"from": "your-business-number"
}
// Response
{
"status": "queued",
"message_id": "msg_abc123"
}

REST API Integrations

Connect your phone system to the tools you already use. Our REST API lets developers trigger calls, send SMS, pull call logs, and automate workflows from any platform.

  • Trigger outbound calls programmatically
  • Send and receive SMS via API
  • Pull call records and analytics
  • Webhook support for real-time events
  • CRM and helpdesk integrations
Talk to a Developer

Ready to Upgrade Your Phone System?

Contact us for a free assessment and custom quote for your business.

Get a Free Quote Call 843-225-8570