Yes, the Nokia 610 car kit phone has its own internal SIM card reader in the radio unit TFE-4. It is also possible to operate the Nokia 610 car kit phone with a separate car SIM card inserted in the radio unit - for example as a fall back solution in cases when one has no compatible mobile phone and thus no remote SIM card available. In this case, one can access the same user profiles (contacts, voice tags, phone settings) that are used when a remote SIM card inserted in a compatible mobile phone, when available. If desired, the car kit phone can be operated without any remote SIM card by using a permanent car SIM card (e.g. a prepaid or dual SIM card).