I've seen several postings that Ascend, Zyxel and Adtran ISDN
equipment TA/routers support 64K DOVBS. What happens when these
ISDN devices call an ISP's digital number in 64K DOVBS mode?
For example, call the dialin normally used for 64K DODBS (data
over data bearer service) with 64K DOVBS(data over voice bearer
Unless the ISP has taken precautions to NOT accept voice bearer
calls on their PRIs, I would expect this to likely work if
answered, since telco network expansion for ISP access uses
modern clear channel technology, not bit-robbing 56K-only
Anyone tried this? I use Worldnet which does not have ISDN access
and BitSurfr Pro which has only 56K DOVBS, so I cannot check for
Thanks for posting anything related to 64K DOVBS.