It needs to initiate the ISDN call as DOSBS (aka DOV).
>-Does it support dual B access
Yes, since it is an ISDN call as far as we are concerned you can use MP.
>-Are there any down sides
You can't do 64K ISDN and not all ISDN TAs support DOSBS/DOV.
-MZ
-- Livingston Enterprises - Chair, Department of Interstitial Affairs Phone: 800-458-9966 510-426-0770 FAX: 510-426-8951 megazone@livingston.com For support requests: support@livingston.com <http://www.livingston.com/> Snail mail: 4464 Willow Road, Pleasanton, CA 94588