Deep Sleep Mode and advertising

Hi,

I'm using DA14583 with SDK5. Simple question: Is advertising possible when setting app_default_sleep_mode=ARCH_DEEP_SLEEP_ON?

Background: My software is derived from ble_app_peripheral. When I set default_sleep_mode=ARCH_DEEP_SLEEP_ON, the device is not advertising anymore. ARCH_SLEEP_OFF and ARCH_EXT_SLEEP_ON is working fine.

Best regards,
Oliver