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New Member

SIP for 7940

hi, please i have the firmware SIP of 7940, ans i need to send it to the phone, how can i do this

Hall of Fame Super Gold

Re: SIP for 7940

Since I suppose you are not using any csico call control solution, please read about 'cisco 7940' on

In short, to reload the firmware, copy all files needd to a tftp server. Turn on pressin #. relase when displays 'reset sequence'. Press in succession 123456789*0#. Confirm erase with 2.

If all the correct files are preset phone will get an address via DHCP (remember thait is needs option 150 with TFTP address) and will upgrade.

New Member

Re: SIP for 7940

hii, my problem is that i can't send the firmware to the phone, how can i do it, i tried to send it with the CME but it doesn't work. thanks


Re: SIP for 7940


Make sure the files have been placed in the correct directory path of the TFTP server. And, make certain too that full read and write access to those files. It sounds to me like the file transfer is failing. Try using TFTP server application loaded onto your PC such as 3CDaemon

As you may already know the phone boots and gets the IP address of TFTP server. So it's a case of the request being received by the TFTP server from the IP phone and then the TFTP server honouring the image file request.

Here are the instructions from




New Member

Re: SIP for 7940

hii Ajaz, thanks for your help, i use a CME to send the file, but the ephone don't boot with the sip firmware, " verifying load" than it reboot and it use the default firmware SEPmac_address. i don't know if there is in relation with the version of the CME. Thanks.


New Member

Re: SIP for 7940


it is my understanding that the CME does not support SIP to the phones (only on the WAN).

I tried to do the same about a year ago and couln't get the phones to run the SIP firmware image.

New Member

Re: SIP for 7940

hii, how can i do the transfer now? thanks

Hall of Fame Super Red

Re: SIP for 7940

Hi Rayen,

Just to answer the question regarding CME Version. SIP endpoint support was added in CME 3.4 and fully expanded in CME 4.1.

Hope this helps!