just installed a SRW 2008 MP instead of an unmanaged 10/100 Mbit D-Link Switch. Now the VOIP doesn't work anymore. If I place a call, it rings at the other side but when picked up no voice can be heard. The Web interface to set the switch up only works with Internet explorer, not with Firefox. It has been working yesterday (very slow though) but today it freezes up. Unplugged the switch to reset it. No improvement, comes up to the "Blue Welcome screen" and then freezes up. The switch can be pinged though and the internet is reachable through it.