we already sold a lot of such products. and last week we gave out 100+ pcs in the famous cluecon -- the pbx software developer's meeting.
if you find any software incompatible feature to TE110P, we can return your money back.
BTW, you should use the D110P to get 100% compatibility, the D110PG is a lead-free version but we have to use newer version of E1 chipset of infineon, so you have to used the patched driver.