Sizing for Outbound Faxing This topic has 0 replies, 1 voice, and was last updated 20 years, 11 months ago by Dave. Viewing 1 post (of 1 total) Author Posts 30th May 2003 at 19:52 #35701 DaveGuest Greetings I need to make 99 fax calls each hour. Each call lasts 1.5 minutes. How many fax ports/machines will I need to make the calls? How many lines will I need? How would I figure this out in Excel? Or with a VB function. Thanks Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.