Desk phone DP1 (sold by Ooma)
Lynx + a high quality corded desk phone (Panasonic would be my first choice).
My only direct knowledge is that:
HD3 is a lot better than HD2.
A wired connection from the Telo to an old desk telephone is better than HD2.
If the DP1 desk phone has a good handset and works well in speaker phone mode, it would be ideal for my Ooma second line. Any comments?