No. You can only receive notifications when you are connected to the internet.
When you receive a notification and turn off you internet connection during the interaction, the answers will not be loaded and sent to the practitioner/researcher.
The next time the client/participant finishes an interaction, the previous interaction will be sent to the practitioner/researcher together with the current interaction.
When it is important (as practitioner or researcher) that the answers will be sent immediately, check the box required in beep properties.