My cisco ip phone 7960 is stuck in boot up mode after performing the soft reboot. i press 123456789*0#

Complete these steps:

1. Unplug the power cable from the phone, and then plug in the cable again.
2. Immediately press and hold # and while the Headset, Mute, and Speaker buttons begin to flash in sequence, release #. ...
3. Press 123456789*0# within 60 seconds after the Headset, Mute, and Speaker buttons begin to flash.

I don't think you are not supposed to actually enter 123456789, but the IP address or mask you want it to use.

When performing the factory reset procedure we are about to describe, it is important to keep in mind that the IP phone will lose all configuration files and phone applications. This means that it is necessary to have CallManager or CallManager Express setup so that the IP phone will be able to receive the new information (phone application and configuration) after the reset procedure is complete, otherwise it is most likely that the IP phone will not be usable until this information is loaded on to it.
This preparation also happens to be the procedure for upgrading a Cisco IP phone firmware.



Follow the steps below to successfully factory reset your Cisco 7942, 7962 IP phone:

1. Unplug the power cable from the phone and then plug it back in. The phone begins its power up cycle.
2. While the phone is powering up, and before the Speaker button flashes on and off, press and hold #. Continue to hold # until each line button flashes on and off in sequence in amber.
3. Release # and press 123456789*0#.

You can press a key twice in a row, but if you press the keys out of sequence, the factory reset will not take place.
After you press these keys, the line buttons on the phone flash red and the phone goes through the factory reset process.
Do not power down the phone until it completes the factory reset process and the main screen appears.

Hi Gtrcop
Restart phone by unplugging power cable
When you see cisco logo press and hold #
Headset, Mute, and Speaker buttons begin to flash in sequence, release #.


Press 123456789*0# within 60 seconds after the Headset, Mute, and Speaker buttons begin to flash.


The phone will prompt for


Keep network cfg? 1 = yes 2 = no
In order to maintain the current network configuration settings for the phone when the phone resets, press 1. In order to reset the network configuration settings when the phone resets, press 2.


HTH
-Karthik

Use the professionals rather than "a comment".
Contact Cisco directly here: Cisco Technical Support IP Phone FAQ

According to Cisco, when initiating a factory reset procedure certain information from the IP phone is erased while other information is reset to the factory default value, as shown in the list below:


Information Erased:

• CTL File (Certificate Trust List)
• LSC File (Locally Significant Certificate)
• IP Phone Call History (Calls Received, Placed, Missed etc)
• Phone application

Information Reset to Default:

• User configuration settings (ring tone, screen brightness, sound levels etc)
• Network configuration settings

t is highly advisable to follow the firmware upgrade procedure in a non-working environment to ensure other phones are not affected (in case of an accidental reboot), and to avoid the freshly factory reset ip phones obtaining the working environment's settings.


Please use the link below and follow the instruction http://www.firewall.cx/downloads/cisco-tools-a-applications/cisco-ip-phone-a-ata-firmware-downloads.html

Do you have a power block for the phone or are you getting power from a POE switch via cat5 cable?
How do you know you purchased a working phone? When was the last time the phone worked properly?

Any other information you can supply about your VoIp setup would help us troubleshoot the power issue with your phone.

it would appear your phone is not getting an address from your DHCP server, i would start by plugging in a laptop to see if that gets an ip address

Hope this helps

How to set a Cisco IP phone to factory default Reset configuration of Cisco IP Phone (7910, 1911, 7940, 7941, 7960, 7961)

To set the Cisco IP phone to factory default completes the following steps: should be completed:

For 7940, 7941, 7960, 7961 phones:

1. Power up the phone (unplug power cable and plug in again and hold the # key.
2. Release # when lights start flashing.
3. Press 123456789*0#.
4. Press 1 to keep network configuration or 2 to lose the network configuration.

For 7906G and 7911G phones:
1. Power up the phone (unplug power cable and plug in again and hold the # key.
2. Release # when MWI starts flashing.
3. Press 3491672850*#.

There is, but these settings are setup in Call Manager, or Call Manager Express. I would see your systems admin to set the default priorities.