Recursion is an applications development company that is focused on developing high quality, scalable, and cost efficient IP-Phone Soft-switch platform solutions for global telecommunications service providers. The company is utilizing its proprietary solutions to enable operators to deliver secure, reliable VoIP-based services which are fully interoperable with other established VoIP standards and systems.

The RCIS-Switch platform is the key competitive differentiator for the company. All key elements necessary for successful VoIP and IP-PBX implementations are included in its infrastructure solutions including Class 4 and 5 capabilities as well as session border controllers. This integrated Soft-switch and billing solution provides competitive advantage and makes the platform exceptionally easy to implement and manage.

To date, the company has successfully implemented over hundreds of IP-PBX and VoIP Switch systems around the world directly or as third party following are some of our featured Enterprise IP-PBX Clients.

Our switch can handle 500,000 extensions and 5000 simultanious calls. Depending on the requirements of our client we configure it for 1000 clients to 500,000 extensions and 32 concurrent calls to 5000 concurrent calls. Number of extensions and concurrent calls also depend on the IP-PBX Gateway configuration and network infrastucture.

Features of IP-PBX:


  • Inbound, Outbound and Blended call handling
  • VIDEO Call within Extensions using soft-phone or Video Codec Supported IP-Phone Handset
  • Web-based and administrative interfaces
  • Ability to extensions remotely
  • CLI Management
  • Integrated call recording
  • Three-Way calling within the Extension
  • Automated Scheduled Callbacks
  • Ability to use standard Telco lines and VOIP trunks
  • TDM / SIP Trunks
  • Remote Extensions
  • Voicemail
  • Voicemail to Email
  • Customized IVR
  • Call Queues
  • Conference Rooms up to 32 person
  • Follow-Me
  • Call Forwarding
  • Time-Based Routing
  • Music On Hold
  • Web Access to Voicemail
  • Admin Status Screen
  • Phone Provisioning Tool
  • Network Settings Tool
  • Enhanced CDR Reports