Use 'patch through' when referring to phone calls or radio communication, not face-to-face talks.

Telecommunication Specific

'Patch through' can imply a brief wait while the connection is being made.

Not Always Instant

There's often a technical process or a person involved in making the connection.

Also used for sending data, not just for voice communication.

'Patch through' reflects a process enabled by current technology, like servers or satellites.

It emphasizes the role of an intermediary in the transfer of information.