An NTP server so the phones can keep time (Windows Active Directory servers do work, failing that any NTP device will do, most home routers can serve NTP too). #CISCO 7941 RING TONE DOWNLOAD DOWNLOAD#
A Cisco account to download the firmware (it is free to sign up and download the firmware, you don't need an active support contract). Working DHCP for the phones with access to set TFTP Options (Option 66). A Free PBX server setup and working (VM is fine). Making it pretty with background images and custom ringtones. Free PBX address book integration via the directory key to mimic CUCM behaviour as closely as possible. Sample Configuration files to get you started. Where to get the SIP Firmware for your existing CUCM Phones (Latest available dates to Feb 2017). Otherwise, the phone goes through the factory reset process.If you're getting rid of CUCM and thinking, "I'd like to use Asterisk (Free PBX in this case) with all these 7942s I have lying around", hopefully this will help you get things up and running. If you press another key, or do not respond to this prompt within 60 seconds, the phone starts normally and does not reset. To reset the network configuration settings when the phone resets, press 2. To maintain the current network configuration settings for the phone when the phone resets, press 1. If you enter this key sequence correctly, the phone displays this prompt: Keep network cfg? 1 = yes 2 = no. If you enter an invalid key sequence, the buttons no longer flash, and the phone starts normally and does not reset. If you do not complete this key sequence, after 60 seconds the phone starts normally and does not reset. If you repeat a key within the sequence, eg: 1 223456789*0#, it is still accepted and the phone resets. Press 123456789*0# within 60 seconds after the Headset, Mute, and Speaker buttons begin to flash. The Headset/Mute & Speaker buttons flash in sequence indicating you may enter the reset key sequence. Immediately press and hold # until the Headset/Mute and Speaker buttons flash in sequence: release #. Unplug the power cable from the phone, and then plug in the cable again: the phone begins its power up cycle. To restore phone configuration or settings to factory default, press OK. Scroll to Admin Settings ➤ Reset Settings, and select All. 
Select Device administration ➤ Factory reset.
Hit the unlock combination **# and a you'll see an Erase softkey appear.Once the boot up is complete, press the Settings button.Power cycle the phone, and let it boot up normally.
If you press the buttons out of sequence, the phone powers on normally The light on the Select button flashes when a button is pressed.Īfter you press these buttons, the phone goes through the factory reset process. When you press 1, the lights on the line buttons turn red.
When the Mute button light and handset strip light both turn off (all other lights stay green), press 123456789*0# in sequence. Press and hold # and plug the phone back in. 
The phone will display Resetting and reboot.įactory reset procedures for the following models:
To reboot a phone from the keypad, goto Settings and enter: **#**. The phone will display Settings Unlocked and allow changes. To unlock read-only menu settings, goto Settings and enter: **#. If a Soft reset doesn't work, try a Hard reset! The phone will display Upgrading and erase its configuration. When an LED starts to flash, release #, and enter:. Press and hold #, power cycle the phone. If the phone will still not register, reset it to factory defaults. The phone should indicate that it's deleting the ITL file, and reboot. Select the ITL file to delete, press Unlock softkey, press more, press Erase. In the Trust List menu, unlock the phone by pressing **#, an open padlock icon is displayed. Goto Settings ➤ Security Configuration ➤ Trust List. Therefore, an invalid ITL (and/or CTL) file will prevent a phone from being re-deployed on a different system. ring tone, screen brightness, volume, etc.Ĭertificate files authenticate and decrypt the (AES) encrypted TFTP configuration files issued during registration.
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