Blackberry Bold 9700 Unlocked Must Go +

Sensible offers only call me on 07900334459 or leave me a text. For sale i have the blackberry bold 9700 which i had open to all networks. The phone comes with a charger only however its got a fault on it and it might be nothing major or it could be something major i would not know because it fullfills my purpose of using BBM. The fault is that when i am trying to make a call out the phone freezes automatically and then restarts, However IT IS NOT BLOCKED. Everything else works on the phone e.g. sending texts and recieving them whatsapp messenger and BBM messenger...Also the internet works on it to... 65 or swap for a blackberry 07900334459