[Asterisk-Users] GS HandyTone-286 Transfer Problem, can anyone confirm?

[Barton Hodges]

There seems to be a problem related to the Grandstream HandyTone-286.
When a call is placed through the adapter, the call can be
transferred.  However, when a call is received through the adapter,
the call cannot be transferred.  The problem does not exist with a
BudgeTone-101 (1.0.4.23) using the same Asterisk configuration and
Dial() settings (Ttm).  I tried all of the firmware on their BETA
site, from 1.0.4.35 through 1.0.4.50 and the problem was never solved.

Can anyone confirm that this problem exists?

Can anyone recommend an alternative analog telephone adapter that is
in the price range of the HandyTone, but is actually reliable?

Thank you.