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jenshansen2300
Beginner

Cisco 7945 - factory reset

Hello

I have unfortunately performed a factory reset and entered the wrong TPTF-server-information in the phone.

I have by doing so removed the firmare. What can I do?

Thanx

Jens

 

7 REPLIES 7
Leo Laohoo
VIP Community Legend

Factory reset would not delete the firmware. 

jenshansen2300
Beginner

When I power on my 7945, then it goes in upgrade-mode. How do I get back to where I can use my phone?

To use a 79XX phone for non-Cisco branded call managers, you will need the following: 

  1. A known working SEPmacaddress.cnf.xml configuration file
  2. Firmware of the phone
  3. Dialing plan file
  4. TFTP server to put all the files (1, 2 & 3) in. 
  5. Disable NAT
  6. Disable SIP ALG

Thank you for your advice.

I do have one problem. Since my phone now is in upgrade-mode - I am unable to change the TPTF-server-settings in my phone. My phone looks for an IP 192.168.0.19 which is not someting I can choose in my TPFT-server-program.

If you are able to help me, I would be very grateful.

 

 


@jenshansen2300 wrote:

I am unable to change the TPTF-server-settings in my phone.


DHCP Option 150 is a mandatory "requirement" for Cisco-branded phones.  This setting instructs the phone(s) the correct IP address of the TFTP server.  

Thank you for all the replies.

 

How do I generate the SEP[MAC].cnf.xml file?

My phone has no working firmware at the moment.

How do I tell my phone the IP-adress of the TPTF-server?

Thank you

It gets the TFTP server via DHCP if you define option 150 in the scope.



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