I did setup the prefix 9 with no problems.

Back to the faxing rules . . . we have had a 1-XXX-XXX-XXXX format in use since day one. I would prefer not changing it if possible. For domestic customers (the vast majority of our customer base) that is an eleven digit number, always starts with a 1, and has hyphens.

Your reply says "Adagio by default automatically prefixes a 10 digit fax number with a 1" whereas the manual further stipulates "unless that number begins with a 1 or 0 already". Ours do start with a 1.

Does your post negate the manual or am I missing something?

Thanks
Robert