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The FreePBX server already has TFTP built in for use with other modules so you can use that for minimal effort. The 7942s require a TFTP server for all their configuration files and firmware.

#Cisco 7941 ring tone download download

As mentioned, you'll need a free Cisco account before they let you download these files.

#Cisco 7941 ring tone download zip file

Make sure you download the ZIP File full of firmware only, the sgn file is not usable.

#Cisco 7941 ring tone download driver

Using CHAN_SIP defaults to port 5160 but doesn't change the port settings if you've already bulk added the extension under PJSIP so if you're having issues registering phones check the driver and port settings.Īdmin -> Applications -> Extensions -> Advancedīy default, the CUCM phones are set to the SCCP protocol and will not work under FreePBX, you need to download the SIP firmware directly from Cisco.Ĭisco 7942 SIP Firmware 9.4(2)SR3 February 2017: cmterm-7942_ 6.09 MB FreePBX SetupĪmong many other things you'll have to do to get the phones working, there are a few simple settings changes that are required in FreePBX before you get too far down the rabbit hole.įor every extension that will use a 7942 you need to change it to use the CHAN_SIP driver and use Port 5160.įor whatever reason, PJSIP does not work with these phones. If you recognise files/explanations from elsewhere please send me a message and I'll add it to my list of references.

I must add that this is just information cobbled together from many different places over the course of several months. 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.

#Cisco 7941 ring tone download update

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).

The new VoIP system also offers the ability to check your voice mail messages from anywhere using Outlook Web Access.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.

VoIP also offers mobility features not available with a traditional phone line, such as the option to use many different types of endpoints and computers to make and receive calls. Moreover, it is much easier to provide for call control redundancy and disaster recovery in VoIP systems. These features include caller ID, three-way calling, and conferencing. In addition, VoIP offers many standard features and services that are often available only for an additional fee on traditional phone systems. Since VoIP is a network-based service, the phone set can be simply moved and connected at the new location no additional work or cost is required to move the phone line. One example of lower maintenance costs involves moving phones due to employees changing their campus location. The shift to VoIP is driven by the lower cost of the services: the cost of maintaining and upgrading the PBX in the next five year would be higher than the cost of implementing the new VoIP phone technology. Why was the VoIP selected to replace the PBX system?