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A carrier-grade softswitch that allows fixed converged and wireless operators to offer a range of next-generation services over SIP. It can be easily extended to deliver new services and is built upon open interfaces to ease integration while delivering carrier-grade scalability and availability as standard.

Flexible Carrier Grade Softswitch

The SVI-C5 Class 5 Softswitch is delivered as an additional module on Squire Technologies Session Border Controller product the SVI-SBC providing comprehensive security and Class 4 switching as standard.

With integration flexibility from a range of industry-standard interfaces, the SVI-C5 softswitch provides fixed, converged and wireless operators with the opportunity to rapidly offer a range of next-generation services.

  • Flexible SQL Development Kit

  • White-labelled subscriber web portal

  • Providing comprehensive security and Class 4 switching

  • Secure IP border

  • Intelligent call routing

  • Support for Centrax services

  • Billing Integration

  • Supports a range of open interfaces


The Squire SVI-C5 comes with a comprehensive set of standard features provided out of the box:

  • Unconditional Forward
  • Forward on Busy
  • Forward on No Answer
  • Reject Anonymous Call
  • Caller ID
  • Speed Dials
  • Selective Call Acceptance
  • Selective Call Rejection
  • Call Pick Up
  • Centrex
  • Do Not Disturb
  • OnNet Only
  • National Only
  • Call Groups
  • Auto Attendant
  • Music on Hold
  • C5 Voicemail
  • Follow Me
  • Extension and DDI Support
  • Fixed Line Dialling
SVI C5 illustration
SQL API Monitor icon

Provision new features using Squire Technologies’ flexible SQL Development Kit (SQL SDK). This can be utilised to rapidly deliver new and unique products and services to your customers, using either your in-house resources or using Squire Technologies’ experienced provisioning teams.


  • functionality management monitoring icon

    Management and Monitoring
    Comprehensive web-based SVI-MS Management system delivering on-board configuration, monitoring and debugging facilities. Full SNMP v1, 2 and 3 supports.

  • functionality high availability icon

    High Availability
    Carrier-grade reliability is supplied through a comprehensive range of high-availability options.

  • C5 billing icon

    Billing is provided by tight integration with industry-leading Billing and OCS platforms over RADIUS, DIAMETER and via comprehensive CDRs. Talk to our team to discuss our most up-to-date range of integrated billing platforms.

  • C5 open interfaces icon

    Open Interfaces
    The SVI-C5’s Open Interfaces provide support for a range of industry-standard interfaces HTML, SMTP, SOAP, XML, and SQL allowing integration into the client’s OSS/BSS infrastructure.

  • functionality performance icon

    The Squire Technologies SVI-C5 Softswitch supports from 500 to 30,000 sim calls

  • functionality cloud cots

    Cloud & COTS Delivery
    The SVI-C5 can be supplied on standalone servers, installed on client-supplied hardware and is fully NFV compliant allowing delivery on a range of cloud-platforms.

Commercial Off The Shelf

Supplied on standard Dell servers optionally with dedicated E1/T1/STM-1 support.

Virtual Deployment

Virtual Machine deployed on industry-standard servers in a data centre environment using a hypervisor, i.e. VMware.

Cloud Deployment

Delivered as a Virtual Network Function (VNF) in AWS, OpenStack, Nokia and Google cloud infrastructure.

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Further Information

svi gmsc

Need to breakout to Mobile or Fixed Network? Take a look at the SVI-GMSC

svi sbc product icon 2

Related Product
Session Border Controller

ppt presentation icon

Download our SVI-C5
Softswitch Presentation