# Cisco-7906G-SIP Cisco 7906G SIP Configuration Files (for 3rd party PBXs) ### TFTP/DHCP Configuration During boot the handsets will discover the TFTP server via DHCP option 66 and/or DHCP option 150. For this example I set option 66 of our VoIP VLAN to the local IP address of our TFTP server. All of the configuration files, firmware files and other customisation files reside in the root directory of the TFTP server, in this case it was `\TFTPBOOT`. ### Base Configuration Files Each handset will require an SEP configuration file. The filename must be `SEP000000000000.cnf.xml` where the `000000000000` is the MAC address of the Cisco handset. In the example SEP configuration file, the following values have been set: sip.provider.com 123.123.123.123 222 pbx-username Pa$$w0rd *55 All other settings can be ignored for the purpose of the inital configuration. You must change every occurance of the above settings throughout the configuration file.