ianobi -- Thank you for your message. That at least helps with my understanding of Obi-speak.
For Future-Nine the AuthUserName is a specific account number that has to be given to login, which does not equal to an outbound phone number to be displayed. So no luck there.
But, by the Special Magick of the Technoverse, the problem just up and resolved itself. Or at least no one told me they worked on it.
So for two or more days I had the problem as I originally described (spoofed number I want shown on outbound calls through other programs, but actual phone number shown as caller ID when placed through Obi202).
Tonight, with no changes made to the Obi202 settings, my desired spoofed number now shows up as the caller ID on outbound calls made through the Obi202.
Problem solved.
Pleased and Puzzled,
Michael