Installation guide

System Configuration 136
Synapse Installation Guide
Updating Devices
New software versions improve system functionality. All Gateways, the optional ATA, and all Desksets should be running the same
software version number. (The optional Cordless Handsets and Cordless Headsets have different software version number
sequences.)
You can update all devices with one command, or you can update the Synapse devices individually.
AT&T recommends automatic device software upgrades for installations with Internet access. This allows your system to obtain
the latest upgrade from our server. Automatic upgrades may not work if your network’s firewall prohibits connection to the AT&T
servers, or if you do not have DNS services provided by your ISP. If Internet access is not available, or you need to manually
initiate updates, see “To manually update a device to the latest software version: (Continued)” on page 140.
Sometimes devices with different versions of software cannot detect each other in the WebUI. Some versions of
Synapse software codes are incompatible, so that when you use one device's IP address for logging into the WebUI,
only the devices with compatible code versions appear in the device lists. For this reason, if you are updating devices
individually, wait until all other devices are updated before updating the software version of the device whose IP
address was used for logging into the WebUI. As a device is updated, it restarts with the new software version so it
may disappear from the device list.
When you add a new “out of box” device that has software version 1.7.10 or higher to the system, the device
automatically gets new software from the network and then restarts. Allow this process to complete before using the
device. The process may take anywhere between 30 seconds to a few minutes, depending on server speed.
Although unlikely, some types of software upgrades could interfere with system settings and directories. Therefore,
back up the system settings and Deskset settings before updating the system software. If you receive automatic
updates, back up each device after each configuration change.
The device restarts after a software upgrade. Ensure that there are no calls in progress or they will be dropped.
If a PC is installed in series with the Deskset, restarting the Deskset causes the PC's connection to the network to be
briefly lost.