A method for negotiating a maximum packaging interval, an apparatus, and a storage medium related to the field of communications technologies. The method includes obtaining, by a voice over long term evolution (VoLTE) apparatus, Connected Mode Discontinuous Reception (CDRX) period configuration information of a base station, determining a maximum packaging interval of downlink data based on the CDRX period configuration information, and sending the maximum packaging interval to an Internet Protocol (IP) multimedia core network subsystem (IMS) core network. Hence, the method can resolve a problem of high power consumption caused by that the VoLTE apparatus is frequently woken up within a CDRX period.