Connecting remote agents to the call center (VoIP SDK secure tunneling solution)

This article is a brief introduction about secure tunneling for call center agent connection in relation with Ozeki VoIP SIP SDK. After reading through this page you will be fully familiar with all the essential terms concerning secure tunneling and what you will need for creating your own solution using Ozeki VoIP SIP SDK.

What is VoIP tunneling?

In the voice over IP model call centers are usually software solution, even on the client side, however, they can use physical phones as well. As a software solution can be used from any places on a computer, the call center agents need no longer to be in the same room, or building for that matter.

The remote call center clients can connect to the call center server with a secure connection that allows the clients to use the server's services and to access the user databases, and there is no risk that a third-party listens into the calls or sniffs information about the customers.

In case of an inside call center client that runs on the company LAN the company firewall secures the connection, but in case of a remote client there is the need for some other security settings and this is when VoIP tunneling comes in.

VoIP tunneling provides a VoIP connection with the basic security measures that are needed to set for the sake of the company and the customers.

Ozeki VoIP SIP SDK provides the support for call center development, you only need to call the proper method that performs the operations you need.

Training guides, simple examples

If you would like to visit the detailed developer documentations, you can learn much more from the Ozeki VoIP SIP SDK Training chapter.


This article introduced you the basic knowledge about secure tunneling for connecting call center agents to a call center and showed how Ozeki VoIP SIP SDK can help you to fulfill your wishes about this topic. If you have read through this page carefully, you already have all the knowledge you need to start on your own solution.

As you are now familiar with all the terms concerning this topic, now it is time to take a step further and explore what other extraordinary solution Ozeki VoIP SIP SDK can provide to you.

If you have any questions or need assistance, please contact us at

You can select a suitable Ozeki VoIP SIP SDK license for your project on licensing page

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