T42G, Gigabit and PoE

[Sacha]

Hello,

I have T42G phones hooked to a Zyxel Gigabit switch with PoE. However, my phone switches back to 100Mbit/s, despite having both the phone and switch set the port to auto. If I try to force the phone to gigabit, nothing changes. If I force the switch, then the switch and the phone do not connect (i.e. the phone keeps rebooting until I change the configuration back to auto or 100Mbit).

Is it possible to use T42G with Gigabit AND PoE? If so, anything to do on the T42G side or the Switch?

Thanks.