tobit6795

oh lol my fault. thats what i meant. now i did a firmware update of both devices vth15 and vto2000a. my vto2000a is connected via 2-wire. in my vth the device isnt listet and i cant add one. is there something that i forgot to configure? btw thanks a lot EDIT: Another question. i was trying around with other firmwares. it seems like a downgrade isnt possible anymore, am i right? EDIT No 2.: i found newer firmware for 2-wire models and was succesful in updating them. Is there a way running a SIP-Server on one of the devices AND let them work together via 2wire?

Does this fw work with VTH1510CH via 2wire?