Setting up VLANs for VoIP with a Netgear GS748T and Cisco IP Phones

I understand the high level concepts of how this is supposed to work, but what I am looking for is specific instructions for how to do it on the Netgear switch I listed above.  I am assuming that the native VLAN of the port is what netgear refers to as the PVID, but how do I add VLAN2 to the list of allowed VLANs permitted over the trunk?  And how are the ports supposed to be tagged?

Please be specific to this exact switch.  Netgear does everything a little different, so general, high level concepts are not what I am looking for as a solution.

I downloaded the manual from ftp://downloads.netgear.com/files/gs748t_user_manual.pdf.
Page 13 onwards describes the process.

You need all ports except the one connected to the firewall set as PVID 1. The firewall port should be set to PVID 2.
For all ports apart from the firewall one you need to add tagged vlan 2.

Thank you much.  I will try it out and get back to you.

Just to note for anyone else that comes across this, that the manual on Netgear's site does describe 802.1q VLANs, however, they do not go into much configuration detail, and certainly do not discuss this particular situation where multiple VLANs are shared on the same ports and you are using more than one gateway or firewall.  This is the reason I was looking for clarification on their use of PVID and Tagging, because most other managed switches I've worked with do not do it this way, except for maybe Dell's managed line.

Also, there are two firewalls in this configuration, one for voice and one for data.  The firewall I am setting to PVID 2 is the VoIP gateway, because the phones are tagged for VLAN 2.

So the final working configuration is as follows:

1) Select 802.1q VLANs on the switch - this will remove the port based VLAN config
2) Add a second VLAN (PVID 2)
3) The switch port for the data uplink should not be a member of VLAN 2
4) The switch port for the voice uplink should be set to PVID 2
5) The switch port for the voice uplink should not be a member of VLAN 1
6) All ports that connect both IP phones and PCs, or just phones, should be Tagged in both VLANs - tagging a port in one VLAN tags it in both
7) All ports that do not connect IP phones should remain untagged, otherwise PCs and laptops may not function properly
8) The port for the voice uplink should not be tagged in VLAN 2

This config was tested and works successfully.

How do your phones get the appropriate default gateway?  Do you use DHCP? If so, how? I have this same switch and 2 default gateways, one for voice and one for data.