Controlling a physical telephone from the PC (instruct to make/transfer a call)

This article is a brief introduction about controlling a telephone from the PC in relation with Ozeki VoIP SIP SDK. After reading through this page you will be fully familiar with all the essential terms concerning physical telephone controlling and what you will need for creating your own solution using Ozeki VoIP SIP SDK.


The voice over IP communication systems can use different end-point solutions. The actual end point can be a softphone, a webphone or even a physical VoIP telephone set. In case of the software solutions the operation process is relatively easy, while handling a physical phone from a program is slightly different.

When a physical telephone is part of a call center system, it is essential to be able to instruct the phone set from server-side, for example when a call center manager wants to take over a call. In these cases the server makes the end-point transfer the call to the client of the manager. This needs to be supported in software and hardware solutions too.

When using Ozeki VoIP SIP SDK you get a great and wide support for call center development including client- end server-side solutions. The actual implementation is based on the business logic your company uses, but the background is provided in Ozeki VoIP SIP SDK.

You can use the transferring support Ozeki VoIP SIP SDK provides to implement call center controlling in your system. If you want to know more about call transferring, you can check the following pages:

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 controlling a physical telephone from a PC 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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