AT command for phonebook memory selection

we are making a tracking device with HL 6528 modem, we are struggling to find the AT command to make modem as phonebook memory storage.

Anybody help us to make it possible.

Have you checked the AT command guide. See section 7 in document below.

dear krima,
we already tried AT+CPBS command to select the phonebook memory ,
when we trying AT+CPBS=“ME” (we assuming this is the command for selecting ME) it is responding as error.
actually we want to store some contacts in modem memory ,can you suggest any commands

AT+CPBS=? gives you the possible option. “ME” is not one of them.