OOMA Internet Fax

OOMA Business offers internet faxing for 9.99/month. However this is misleading, to use internet fax you must have a dedicated number for inbound faxes which is another 9.99/month. They are essentially charging 20/month for internet fax, isn’t this too much? There are several offerings with a number that are much cheaper. I wish I would have known this going in.