Call-recording hardware

Recording of telephone conversations in wired systems requires physical access to the lines over which calls are carried.

SIP trunk calls can be recorded using port spans installed on specially configured network ports that do not have IP addresses and are used as sniffers for SIP traffic, and can be configured to record all or only specific calls.

A simple example whereby anybody might want to record a call is to note complex instructions, or simply to be able to return to a conversation whose details have been forgotten.

They work in the same way, but record calls in digitised form onto digital data storage media.

PC-based call-recording usually includes software to retrieve and listen to recorded calls.

Call-recording services make it possible for consumers and businesses to record their telephone calls without any hardware.

They centralize recordings, usually making them available through a web portal, facilitating retrieval and review.