Landline: Record a phone call - so it'll work

If you want to make a phone call in the fixed network, most cordless phones have an integrated recording function.

Telephony recording on the cordless telephone

Before you record a phone call, however, find out about the legal situation.

• Most modern telephones have an integrated recording function. However, when buying a phone, pay attention to the recording length. This can vary significantly depending on the manufacturer and model.

Conversation recording with wired telephone

• There are special adapters for wired telephones with which you can document a call. It is switched between the phone and the handset.
• You can either connect the jack plug to a recording device or to your PC. You can then use the computer to record the telephone call with the free Audacity software, for example.

Record VOIP calls with FritzBox and WireShark

If you have a FritzBox, you can simply record VOIP calls

• Call the FritzBox in the browser via "//192.168.178.1/html/capture.html".
• Press the Star button at the beginning of the phone call and the Stop button at the end. The file is saved in ETH format.
• Download the free WireShark tool to your PC and use it to open the ETH file.
• Navigate to "Statistics -> RTP -> Show all Streams" and click on "Analysis", then on "save payload".
• If you select "au" as the format and channels "both", an audio file will be generated which you can play with the VLC media player.

This practical tip shows you how to record calls with the iPhone.