![]() ![]() This might be my error not generating proper version stamps but I can't even see the phone polling the TFTP server for changes so I doubt it works at all under SIP firmware. Auto update on config changes don't work.Phones are prone to freezing, I'm not sure if this is due to old flaky phones on my part or if this applies to all 7942s.Phone Error: Error updating locale - Due to missing locale jars, again you need an active Cisco contract to get these.Phone Error: No Trust List Installed - Due to missing tlv files, you can't get these without active Cisco contracts.Conference calls can not be initiated from the phone (the calls don't join).An NTP server so the phones can keep time (Windows Active Directory servers do work, failing that any NTP device will do, most home routers can serve NTP too). ![]() A Cisco account to download the firmware (it is free to sign up and download the firmware, you don't need an active support contract).Working DHCP for the phones with access to set TFTP Options (Option 66).A Free PBX server setup and working (VM is fine).Making it pretty with background images and custom ringtones.Free PBX address book integration via the directory key to mimic CUCM behaviour as closely as possible.Sample Configuration files to get you started.Where to get the SIP Firmware for your existing CUCM Phones (Latest available dates to Feb 2017).If you're getting rid of CUCM and thinking, "I'd like to use Asterisk (Free PBX in this case) with all these 7942s I have lying around", hopefully this will help you get things up and running.
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