Bridging of telephone and VOIP is possible by using any computer-telephone interface – for example – the PCTI-3. This device allows you to plug in a headset and telephone input cable may be plugged. Users may switch the headset between telephone and computer, or allow both to operate simultaneously. In this way, telephone communication can be broadcast to a computer, and computer audio may be fed back into a telephone conversation.

The exact setup instructions for installing and using a phone bridge will depend upon the specifics of the device & brand purchased.  In the case of the PCTI-3, setup is quite easy.

1. Insert headset plugs into the microphone and speaker inputs

2. Unplug handset from phone and plug handset into handset plug on PCTI-3

3. Plug telephone input cable of PCTI-3 into telephone base

4. Plug computer input cable of PCTI-3 into the appropriate microphone / speaker inputs of computer’s sound card

Using a speakerphone for audio and a microphone on your PC will also work