4.21.5 SNMP Settings ............................................................................................................... 110
4.21.6 Backup & Restore ........................................................................................................... 111
4.21.7 Factory Defaults.............................................................................................................. 112
4.21.8 Firmware Upgrade .......................................................................................................... 112
4.21.9 Reboot ............................................................................................................................ 113
4.21.10 Statistics ...................................................................................................................... 114
4.22 Logout ....................................................................................................................... 115
Appendix A: Specifications ................................................................................. 116
Appendix B: Troubleshooting ............................................................................. 117
Appendix C: Telephony Features ........................................................................ 120
Appendix D: Telephone Operation ...................................................................... 122
Appendix E: Technical Support .......................................................................... 125