11-29-2021 01:41 AM - edited 11-29-2021 01:49 AM
Hi to all,
I have a Cisco 7945g a friend gave me as he gave up trying to upgrade it so now its my go
I have a tftp server setup as a dhcp server and the phone connects directly to the computer
I am upgrading the phone to sip firmware 8.5.2 unfortunately I do not know what version it is currently on all I know is it is currently using SCCP
What happens is the phone connects fine, gets the ip address then starts to download the term45 file and then just reboots
Not sure why hopefully you guys know
11-29-2021 01:55 AM - edited 11-29-2021 02:04 AM
Reset the phone using above steps and try to load the firmware.
11-29-2021 02:00 AM
Unfortunately it just comes back up with the upgrade screen
11-29-2021 02:07 AM
11-29-2021 02:13 AM
I hope your upgrade file is on your laptop. So run TFTP applications on your laptop and keep the firmware files on the TFTP folder and on DHCP configure option 150 as your Laptops IP address.
Use ZIP firmware File.
11-29-2021 02:16 AM
Just to upgrade it I have the ethernet cable coming out of my computer and connected directly to the phone no switch or anything else
then the tftp server acts as a temporary dhcp server
11-29-2021 02:26 AM
You need a DHCp server and configure option 150 IP as your laptop IP. without that phone won't take the new firmware.
11-29-2021 02:27 AM
How would I do that?
11-29-2021 02:34 AM
You need a switch.
Put the phone and pc on same Vlan
Configure DHCp pool With option 150 as your Laptop IP address.
Run TFTP application on your laptop and keep the Firmware files on the TFTP folder.
11-29-2021 02:36 AM
The computer and the phone are not connected to a network
the cable comes out of the computer and into the phone and that connects them
11-29-2021 02:39 AM - edited 11-29-2021 02:40 AM
The phone need an IP and TFTP address either statically configured or by DHCP. With out the TFTP address information the phones is not going to download the firmware.
You cant make this working just by connecting the phone to your computer.
11-29-2021 02:42 AM
The TFTP application replicates a dhcp server the phone is allocated a ip address by the tftp server
11-29-2021 02:42 AM
The phone is getting a ip address
11-29-2021 03:02 AM
Hi,
Unless I missed it, it may help telling us what you're trying to register your phone to. Is it CUCM or CME?
11-29-2021 12:25 PM
I am trying to connect to a sip pbx system but right now I am just trying to update it
The phone starts downloading files the reboots almost immediately
Thanks
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