Explained in detail on below link.
Press **# to unlock the phone.
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/7975G_7971g-ge_7970g_7965g_7945g/9_0/english/admin_guide/P747_BK_W06BD6D9_00_adminguide_7945-7965-7970-7971-7975/P747_BK_W06BD6D9_00_adminguide_7945-7965-7970-7971-7975_chapter_0100.html
Set IPv4 Configuration Fields
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Scroll to IPv4 Configuration and press the Select softkey. |
Set IPv6 Configuration Fields
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Scroll to IPv6 Configuration and press the Select softkey. |
Set Domain Name Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | To disable DHCP, perform one of the following actions:
|
| Step 3 | Scroll to the Domain Name option. |
| Step 4 | Press Edit. |
| Step 5 | Enter a new domain name. |
| Step 6 | Press Validate. |
| Step 7 | Press Save. |
Set Admin VLAN ID Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Scroll to the Admin. VLAN ID option. |
| Step 3 | Press Edit. |
| Step 4 | Enter a new Admin VLAN setting. |
| Step 5 | Press Validate. |
| Step 6 | Press Save. |
Set SW Port Configuration Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Scroll to the SW Port Configuration option and then press Edit. |
| Step 3 | Scroll to the setting that you want and then press Select. |
| Step 4 | Press Save. |
Set PC Port Configuration Field
To configure the setting on multiple phones simultaneously, enable Remote Port Configuration in Enterprise Phone Configuration (System > Enterprise Phone Configuration).
 Note | If the ports are configured for Remote Port Configuration in Cisco Unified Communications Manager, the data cannot be changed on the phone. |
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Scroll to the PC Port Configuration option and then press Edit. |
| Step 3 | Scroll to the setting that you want and then press Select. |
| Step 4 | Press Save. |
Set PC VLAN Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Make sure the Admin VLAN ID option is set. |
| Step 3 | Scroll to the PC VLAN option. |
| Step 4 | Press Edit. |
| Step 5 | Enter a new PC VLAN setting. |
| Step 6 | Press Validate. |
| Step 7 | Press Save |
Set DHCP Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Scroll to the DHCP option and press No to disable DHCP, or press Yes to enable DHCP. |
| Step 3 | Press Save. |
Set IP Address Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Set the DHCP option to No. |
| Step 3 | Scroll to the IP Address option, press Edit and enter a new IP Address. |
| Step 4 | Press Validate and Save. |
Set Subnet Mask Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Set the DHCP option to No. |
| Step 3 | Scroll to the Subnet Mask option, press Edit, and then enter a new subnet mask. |
| Step 4 | Press Validate and then press Save. |
Set Default Router Fields
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Set the DHCP option to No. |
| Step 3 | Scroll to the appropriate Default Router option, press Edit, and then enter a new router IP address. |
| Step 4 | Press Validate. |
| Step 5 | Repeat Steps 3 and 4 as needed to assign backup routers. |
| Step 6 | Press Save. |
Set DNS Server Fields
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Set the DHCP option to No. |
| Step 3 | Scroll to the appropriate DNS Server option, press Edit, and then enter a new DNS server IP address. |
| Step 4 | Press Validate. |
| Step 5 | Repeat Steps 3 and 4 as needed to assign backup DNS servers. |
| Step 6 | Press Save. |
Set DHCP Address Released Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Scroll to the DHCP Address Released option and press Yes to release the IP address assigned by DHCP, or press No if you do not want to release this IP address. |
| Step 3 | Press Save. |
Set Alternate TFTP Field
Procedure
| Step 1 | Unlock network configuration options. |
| Step 2 | Scroll to the Alternate TFTP option and press Yes if the phone should use an alternative TFTP server. |
| Step 3 | Press Save. |
Set TFTP Server 1 Field
Procedure
| Step 1 | Unlock the CTL or ITL file if necessary (for example, if you are changing the administrative domain of the phone). If both the CTL and ITL files exist, unlock either of the files. |
| Step 2 | If DHCP is enabled, set the Alternate TFTP option to Yes. |
| Step 3 | Scroll to the TFTP Server 1 option, press Edit, and then enter a new TFTP server IP address. |
| Step 4 | Press Validate, and then press Save. |
Set TFTP Server 2 Field
| Note | If you forgot to unlock the CTL or ITL file, you can change the TFTP Server 2 address in either file, then erase them by pressing Erase from the Security Configuration menu. A new CTL or ITL file downloads from the new TFTP Server 2 address. |
First phone should get the IP. and then comes the TFTP.
Whats the status of the phone DHCP, enabled or disabled ?.since your switch port support both data and voice vlan , there is no need to configure the vlan on phone.phone should get the vlan informations from switch using LLDP.check if LLDP is enabled by default on switch or not.if not, enable LLDP on the switch. . Remove the static vlan configuration and have a try.
Below mentioned link explain how to configured voice and data vlan on netgear, but I am not sure if it match your model or not
https://www.downloads.netgear.com/files/answers/Voice%20VLAN%20on%20Smart%20Switches.pdf
