Based on the provided information, it appears that the caller with the number +6498023848 is making repeated attempts to contact the recipient, with harassment being the primary intention. The fact that the caller leaves long silent voicemails with background noise and no actual message suggests a lack of legitimate purpose. This behavior is often characteristic of prank calls, where the caller seeks to annoy or intimidate the recipient. The frequency of the calls, nearly daily, further supports this assessment, indicating a deliberate effort to disturb the recipient.
Nearly daily calls result in lengthy, silent voicemails that contain no information, only background noise.