OpenCA (OCA) Softswitch delivers a bridge to Next Generation Networks with converged voice, data and multi-media services for global carriers and enterprises.



OCA Solutions for Global Carriers and Enterprises | Learn more

OCA Softswitch Base Solution

Start with our OpenCA base softswitch module, to create your ideal infrastructure solution. 

Interconnect with another carrier network via SIP, H.323 protocols using advanced H.323 and SIP gateways.                                                                                         

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OCA Redundant Solution | Learn more

Redundancy Upgrade 

Upgrade your OpenCA Softswitch standalone system to a redundant solution with another softswitch for a higher availablity.

Realise your network's potential. Introduce network efficiency. 

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SIP Subcribers Module | Learn more



SIP Subscribers Module

Build your OpenCA Softswitch capabilities with the optional SIP Subscribers component.

Register SIP End Points or trunks to the softswitch, includes intelligent call routing functions.

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Proven Results Worldwide



Solid & Proven Technology

OpenCA Softswitch solution is acclaimed for its solid and proven technology. It is ready to be deployed around the world and help providers achieve VoIP PSTN Connect. 

Deploy now, bridge the gap to NGN.

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Industry Leader

Industry leader in IP Voice

OpenCA (OCA) Softswitch is backed by Symbio Networks, a recognised leader in IP Voice communications. Other solutions in the Symbio portfolio include TollShield, iBoss, smart call routing and number porting.

OCA Softswitch

powered by Symbio


 Premium support

Premium customer service

OpenCA customers enjoy white-glove service every step of the way. We support every customer with our capable and very experienced team. You're never left on your own.



Interconnect. Increase ROI. Empower Your Network.

With OpenCA (OCA) Softswitch Signaling Solutions.







If you would like to understand how OCA Softswitch can help you capitalise on the benefits of a true softswitch, please contact us.