Around 3:30 this morning the Chatham-Kent Police Communications Centre received a hang up çall to 911.
They traced the number to a Chatham apartment and rolled officers.
They say a woman had just been assaulted by her boyfriend using a coat hanger and a broom stick.
The 32 year old man was charged with assault and 2 counts of assault with a weapon.
He was held pending a bail hearing.
Once a call goes into the system, even a hang up, they will call back.
If there is no answer they will try and trace it and send police.