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Converting CISCO 7940G to SIP

How do I connect my laptop to CISCO 7940G via TFTP server? I have needed files to convert it to SIP, but I cannot connect to it. I have read somewhere that I have to use also DHCP server, but I am connected on laptop via wi-fi, and connected to the phone with Ethernet cable (phone is also connected to the hub). Phones 7960 that I had already bought converted to SIP work fine with my internet. 

Please give simple solution, how to quickly connect phone with laptop via TFTP without possibility to change DHCP servers.

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Step 1: Obtain the SIP

Step 1: Obtain the SIP Firmware files for Cisco Unified IP Phone 7940G.

Step 2: DISABLE your WiFi adapter in Windows.

Step 3: Configure your Ethernet adapter with the manually assigned IP address SM /24 Gateway

Step 4: Click this link. Read Chapter 4. Configure your 7940G phone with the IP address SM /24 Default Router & DNS

Step 5: Prepare the TFTP server to deploy the firmware files to the phone by configuring it to listen to address.

Step 6: Put all the files along with the extracted SIP image files in the TFTP server root directory the one you defined on the TFTP server options.

Step 7 Restart the 7940 device.



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