My recommendation is that you install dnsmasq. I think that if the TFTP server is unavailable it will just use the previous config, so it’s possible that you can get away without it, but I haven’t tried.

It needs to download it’s config on every boot, so you will always need a TFTP server running. The phone will download it’s firmware and config via TFTP. Write the config files for the phone and upload them via the TFTP server.Configure the SIP extension in Asterisk.Flash the phone with the firmware via the TFTP server.The steps to getting this phone working as a SIP extension on Asterisk on Ubuntu / Raspberry Pi: You will need to tweak the config in places. Q: Will you tell us how you got your phone to work?Ī: Yes! However – this is what works for me. There is a lot of confusion about config files (the 79 use different ones). Q: Is a lot of the information on the web about how to set up the 7941 wrong?Ī: Yes. And assuming you already have Asterisk set up. If you’re comfortable with Linux and a few command line tools. You need to flash the correct firmware though.Ī: No.

You need to load the SIP firmware (the focus of this post) or chan-sccp (out of scope for this post but I’ll check it out at some point).Ī: Yes. Q: Does the Cisco 7941 work with Asterisk?Ī: Yes. Since these devices are no longer supported many companies will be getting rid of them (or probably already have) so there should be some bargains to be had for phone geeks. A testament to the good build quality of these phones, and perhaps the previous owner’s careful handling.

These phones went End Of Sale in January 2010, so even if mine was one of the last phones to roll off the production line it’s still about 7 years old but it’s still working perfectly. This is a phone which was £400 when new (some time around 2004) but can now be picked up for about £10. Someone seems to have hosted the files here: Įdit 2: Looks like the tinyupload file has gone missing too. Edit: I heard that Cisco have now removed the SIP firmware from their site.

Download cisco tftp config