Premises Based Solutions


Carolina Digital Phone offers a Premises Based Solution for business enterprises that have a high number of digital stations and have the bandwidth to support SIP trunks. In partnership with Thirdlane we offer an advanced IP PBX and a unified communications platform based on Asterisk® – the worlds most popular open source PBX engine. Thirdlane Business PBX enhances Asterisk by adding powerful management tools and end-user applications, redundancy and high availability, and ease of installation and maintenance.

thirdlane logo

While offering advanced functionality out-of-the-box, Thirdlane focuses on providing an open system that can be further enhanced by Thirdlane partners to meet the most demanding business requirements. With Thirdlane Business PBX, companies of any size have access to the features they need to be productive. With over a decade of successful worldwide deployments, Thirdlane Business PBX is a cost-effective advanced unified communications solution offering all the features of an enterprise-class PBX for businesses, both small and large.

Key features of Thirdlane Business PBX:


  • Easy and fast Installation. Thirdlane PBX can be installed in minutes – all the required components are included in a downloadable Linux distribution that can be installed directly on hardware or in a virtual environment.
  • Easy Maintenance. Updating or migrating Thirdlane Business PBX is equally easy – just say “yum update” and you will get all the required updates from operating system to the latest communications features we’ve implemented – your PBX will never be out of date.
  • Easy and fast PBX configuration. System wide templates and bulk provisioning of user extensions, routes and related devices greatly reduce PBX configuration time.
  • Easy Integration and Customization. Thirdlane unique script based approach offers Reseller Partners and customers a simple and powerful way to add new call processing features to the core PBX – while maintaining the ease of use and configuration through the Communications Manager – Thirdlane PBX web based GUI.
  • REST API for provisioning and management of Thirdlane PBX components and extending base functionality by creating custom applications. To use Thirdlane
  • REST API developers can use any programming language capable of submitting secure HTTP requests..
  • Easy Administration. No special knowledge of Linux or Asterisk is required for day-to-day operations, so the management functions can be performed by regular staff.
  • Easy to Use for end-users. Each user gets access to the User Portal which provides simple web interface for managing their own settings, including access to directory, voice mail, call logs, call forwarding, follow-me, call screening and recording.

Connectivity and Device Support

  • SIP / IAX / Analog / T1 / PRI Trunks
  • SIP / IAX / Analog Handsets / Extensions

Administration Tools

  • Communications Manager – web based Management GUI
  • Communications Manager User Portal – web portal for each User Extension

Core PBX Features

  • Internationalization with Multiple-Language Support
  • User Extensions
  • Feature Codes
  • Special Lines
  • Special Mailboxes
  • Multiple Phones per Extension
  • Virtual Extensions
  • Call Flip (Transfer to/from Mobile)
  • DIDs and Inbound Routes
  • Schedule Based Inbound Call Routing
  • Operator Managed Inbound Call Routing
  • Multi-level IVR / Auto Attendants
  • Outbound Routes
  • Automatic Trunk Failover
  • Music on Hold – System Wide or per User Extension
  • Extension Monitoring (presence or BLF)
  • Dialing Permissions (Groups and per Extension)
  • Ring Groups
  • Hunt Lists (lists of Ring Groups)
  • Dial By Name Directory
  • Integration with Overhead Paging Systems
  • Phone-to-Phone Intercom
  • Corporate Contact Directory with Click-to-Call
  • CRM Integration / Screen Pops
  • Call Parking
  • Call Forwarding
  • Call Screening
  • Call Recording

Voicemail Features

  • Voicemail to Email Forwarding
  • Message Waiting Indicator
  • Multiple Voicemail Folders
  • Web Access to Voicemail

End User Features

  • Unified Inbox (Voicemail/Fax/Email)
  • Company Contacts with Click-to-Call
  • Personal Contacts with Click-to-Call
  • Voicemail Configuration
  • Find Me / Follow Me
  • Call Forwarding on Busy
  • Call Forwarding on No Answer
  • Do Not Disturb
  • Web Access to Voicemail Messages
  • Web Access to Recorded Calls
  • Selective Call Forwarding
  • Call Blocking
  • Selective Call Screening
  • One-touch Call Recording
  • Call Detail Records (CDR) with Click-to-Call
  • Outbound PDF to Fax via Web
  • Language Selection


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Call Features

  • Caller ID Modification
  • Distinctive Ring for Internal/External Calls
  • Attended Transfer
  • Blind Transfer
  • Call Parking
  • Group Call Pickup
  • Directed Call Pickup

Fax Features

  • Inbound Fax to Email (PDF)
  • Outbound PDF to Fax via Web

Media Files Management

  • Music-on-Hold Management and Upload
  • Click-to-Call Recording of Voice Prompts


  • Shared and Personal Conference Rooms
  • Inbound and Outbound Conferences
  • Realtime Conference Monitoring and Management

Call Center Features

  • ACD / Call Queues
  • Orderly Queue Handling
  • Call Recording
  • Local and Remote Agents (*)
  • Call Center Statistics (*)
  • Call Center Live Monitor (*)
  • Agent Live Panel (*)


  • Call Detail Records (CDR) Reporting
  • PBX usage statistics


  • Multiple Provisioning Options (TFTP, HTTP, etc)
  • Sample Phone Templates
  • Phone Templates Management
  • Bulk Phones Auto Provisioning
  • Individual Device Button Assignments (Line, Speed-Dial, BLF)

Convenience Features

  • Bulk Generation of User Extensions
  • Automatic Password Generation
  • Mass Updates of User Extensions
  • Automatic DID Routing

Backup and Restore

  • Scheduled Backup
  • Selective Backup
  • Web Based On-Demand Backup and Restore

Web GUI Customization

  • Branding support (company name and logo)
  • Multiple GUI Themes
  • GUI Menu Customization
  • Multiple Language Support
  • Translation Mode for GUI translation

Over 20 Years Of Service
Our Customers Love Us!

Sam Coates
Sam Coates
May 17, 2021.
We receive excellent service from Chris and others at Carolina Digital Phone.
Christine Olson
Christine Olson
May 4, 2021.
Carolina Digital was so helpful to us when we had to transition to a virtual office. The service is great and the people are so helpful. The virtual phone system works better than what we were using in our office and they have a great online dashboard that is very easy to use. We are sticking with them even when we go back to a real office.
Randy Hoover
Randy Hoover
April 16, 2021.
Excellent Service, actually the best vendor we work with. Staff is exceptional and responsive.
Shirley Day
Shirley Day
April 14, 2021.
The staff at Carolina Digital Phone are very professional and always solve any issues we might have with a simple phone call. I highly recomend their services, they are the best!!
David Huff
David Huff
April 13, 2021.
Love Carolina Digital, especially Chris V she's wonderful! Team is helpful for our questions, quick, and easily accessable.
Michael Levine
Michael Levine
April 13, 2021.
Levine Law Group highly recommends Chris Villa and the whole team at Carolina Digital Phone!
Trina Goodman
Trina Goodman
April 13, 2021.
At Levine Law Group, we had an amazing experience switching our phone system to VOIP!! My only regret was that we didn’t do it sooner! Chris Villa and her team were top notch and I highly recommend them!
G Baker
G Baker
April 12, 2021.
Very good and responsive company. Highly recommended.
Jenny T.
Jenny T.
March 17, 2021.
The Carolina Digital team is helpful and always there when we have questions, but better than that, they have everything set up so that we have few, if any, issues. Highly recommend!
Robin Jones
Robin Jones
February 3, 2021.
Awesome service, quick resolve of issue the company I work for was having that day with our phones. All good things to say!!
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