Cisco 7975 Factory Reset

Factory Reset of Cisco 7975:

1. Unplug the power cable from the ip phone and then plug it back in.
2. While the phone is powering up, and before the Speaker button flashes on and off, press and hold the hash # key.
3. Continue to hold # until each line button flashes on and off in sequence in orange color.
4. Now release the hash # key and type the following sequence 123456789*0#

Factory Erase including Splash Screen:

Follow the above instructions, For the key sequence in Step 4 use this

3491672850*#

 Start the ftp server. It should be loading the firmware.

Disposable Linux TFTP Server

Whenever we talk about a server, always it need not be highly configurable.

I was looking for a simple tftp server to upgrade phone firmware. Either it comes with xinetd or service related things with all unwanted security settings etc..

Would you argue what is safe?

I just need a standalone executable to serve files via tftp and dispose it off. Not as a installed service or xinetd crap.

tftpgui under linux did a pretty awesome job.

Run in the  command line  

kans@kansmac14 ~/Downloads/tftpgui $ sudo ./tftpgui.py

You are given a simple UI to select the folder to serve file and logging.

Pretty Simple and Awesome ! Simple Engineering need to be Simple.