Question about Cisco 7940G IP Phone

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Cisco 7960G IP Phone Problem

I've got a Cisco 7960G IP Phone setup to use Asterisk 1.4. I'm trying to change the firmware to SIP 3-8-6-00. I've setup my DHCP server and it's giving out the IP address to the phone. However, the phone doesn't boot completely and all I see is defaulting CM to TFTP Server. Also, I noticed that in the settings on the phone, my TFTP server address is in the CM Address field. Any help?

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Anonymous

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Try to manually reset the phone - **#"Settings" (this will unlock the configuration) + Network + menu under number "33" - erase the configuration. Then the phone configuration will be erased. Also you can manually set IP address and TFTP server

Posted on Jun 10, 2008

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How to upgrade to SIP Firmware on Cisco 7945G

This process should work for you http://www.cisco.com/en/US/products/hw/phones/ps379/products_tech_note09186a0080094584.shtml

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I have polycom SoindPoint 301 and i would like to use as SIP to one of the VoIP providers. I dont have asterisk in my network and i would like to connect it directly to the VoIP provider. So there is no...

1st. Get the IP address of the phone. and type that into browser.
*- default user: Polycom / password: 456

*- Under menu SIP, type in your voip provider
*-Under menu LINES type in user info and "secret" should be your password.

Make sure your ports are open (SIP is usually 5060) you can change it in that same config screen.
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Want to migrate fom sccp to sip protocol for cisco IP Phone 7912

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Can I use a CISCO IP 7941 phone, that has been on a company network, in my home? Should it just work by plugging in a telephone connection and using the appropriate power supply? Is there programming that...

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I am trying to unlock my phone to program it under sip

Hello,
Complete these steps:
1.On the Cisco IP Phone, press the Settings button.
2.Press **#
3.When the window displays Settings Unlocked, click the More softkey.
4.You now see the Erase softkey, which can be used in order to erase the configuration on the Cisco IP Phone.
I hope that this has been very helpful for you

If this solution will not helpfull for you that time pls send me a IP Phone details.
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http://www.3cx.com/sip-phones/cisco-7940.html

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Since the 3cx softphone worked well, I don't see why you couldn't configure each as for 3cx and make them work as well.
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Converting Cisco 7940 IP Phone to SIP

Unlocking a Cisco 7940

Method 1:
1) Unplug the phone
2) Plug the phone back in while holding the # key
The phone will soon display “Reset key sequence detected”
3) After several lights flash press the following keys in order:
1 2 3 4 5 6 7 8 9 * 0 #
4) The phone will then ask you if you want to save the network configurations:
Save network cfg? 1=yes 2=no
5) The phone will soon display “Factory reset initiated” and will continue
through the boot up process.
If that process fails to work for some reason there
is a second method.

Method 2

Complete these steps:
  1. Press Settings.
  2. The Network Configuration lock symbol must be unlocked. If not, exit to the main window and press ** # again.
  3. Press 3 on the keypad (or scroll down) for Network Configuration.
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  5. Press the Yes softkey.
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The phone will now be reset.

Also see this link
http://www.cisco.com/univercd/cc/td/...tain.htm#93250
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