Sounds like what I do here with OS/2. I have D'Bridge running in its own window, a window for a seperate binkd session, and a window for Maximus. I wanted to use RA for the BBS as that is what I ran in the old  days but RA doesn't seem to like Vmodem very well. Most times the modem will show "ring" and never answer. Maximus on the other hand answers very quickly and reliable but in my old mind Max is "ugly" compared to RA. I will keep playing with it and may open a seperate window with FrontDoor to see if RA will respond correctly to it. I use the same modem init for Max as I do for RA. I use ATZ|
to init. I have also tried Lora BBS software and really liked the look and feel of it. It hass a build in mailer with the BBS and is very RA like in appearance. The problem with Lora is it is crippled without a key and I have scoured the echos and interweb looking for one. There is a "free" version of Lora on github but won;t compile for OS/2. I think Robert Wolf tried to compile it back some time ago and gave up. I have Syncronet and Mystic running on other machines so this OS/2 is just for fun. It is like a treasure hunt trying to find all the old software!
--- SBBSecho 3.14-Linux