No, you would use two NICs, one on each VLAN... there maybe a way to do it with one NIC, but I am not aware of it.
This is more complicated than it appears initially though, typically it is accomplished with THREE NICs, one to each VLAN and one to the public internet, then it becomes the gateway and router for entire network. In some cases that is a usable configuration, but in others it is not.
Note that using the MSL server for most of these applications is not directly supported (or recommended) by Mitel.