From Settings > Phones > Recording, enable or disable recording for incoming calls, outgoing calls, dual-channel recording, and API access.

Result: If call recording is enabled this way, multiple copies of the call will be recorded.

Result:

• If you enable call recording system-wide and on an individual line, ring group, or phone number; only one copy of call will be recorded.
• If you enable call recording system-wide or on a phone number, as well as on an individual call queue; multiple copies of the call will be recorded. The queue will generate a recording that excludes the hold music, where the other recordings will include the hold music.
• If you enable call recording system-wide or on a phone number, as well as on an individual conference bridge; multiple copies of the call will be recorded. The bridge will generate a recording that starts when the first participant enters and ends when the last participant exits, where the other recordings will be from the perspective of each participant.

Result: If call recording is enabled system-wide, multiple copies of the call will be recorded.

Result:

• If you enable call recording system-wide and on an individual line, ring group, or phone number; only one copy of call will be recorded.
• If you enable call recording system-wide or on a phone number, as well as on an individual call queue; multiple copies of the call will be recorded. The queue will generate a recording that excludes the hold music, where the other recordings will include the hold music.
• If you enable call recording system-wide or on a phone number, as well as on an individual conference bridge; multiple copies of the call will be recorded. The bridge will generate a recording that starts when the first participant enters and ends when the last participant exits, where the other recordings will be from the perspective of each participant.