FYI to all.

The HT704 is a different animal from the HT701 and HT702.

It does seem to work fine once configured, but you'll have to configure it manually unless it is added to provisioning options.

The auto provisioning using HT701 or HT702 format does NOT work, probably because the HT704 has separate menu pages for the SIP profiles and FXS ports.

In other words, it is more like the GXV4004 gateway than the HT702 adapter.

Just thought I'd share.