Hi all,I have a desk phone, model CP 6921 but am unable to access my voicemails as the pin was not left to me by the previous employee. Is there a way of resetting the pin? Or is there a default I could try?Thanks for your help

Hi all,I have a desk phone, model CP 6921 but am unable to access my voicemails as the pin was not left to me by the previous employee. Is there a way of resetting the pin? Or is there a default I could try?Thanks for your help