ContributionsMost RecentMost LikesSolutionsRe: Fax will not work Thx johnmay that does work I was thinking about trying a different splitter they may be wired differently but fax so seldom this works fine Fax will not work Hi Recently signed up for Cox internet service bundled with phone VOIP. I am trying to send fax from a printer HP officejet Pro with fax capabilities but have been unable to get dial tone. My panoramic wifi modem and printer are in the same room with one phone jack. The router phone output is connected to phone jack. Tried to connect printer into extra phone jack (empty) on wifi router did not work. Tried splitter at phone jack, wifi router and fax machine sharing same jack. did not work. How can one send a fax over the Wifi router?