About This GuideixGeneral Issues ..................................................................................................................... 145Display Issues ...................................................................................................................... 145Password Issues .................................................................................................................. 146Call Issues ........................................................................................................................... 147Audio Issues ........................................................................................................................ 147Network Issues.................................................................................................................... 149Log Issues ........................................................................................................................... 151Reboot & Upgrade & Reset Issues ..................................................................................... 153Regulatory Notices ................................................................ 157Service Agreements ............................................................................................................ 157Limitations of Liability ......................................................................................................... 157Safety Instructions .............................................................................................................. 157Appendix ............................................................................... 161Appendix A – Time Zones ................................................................................................... 161Appendix B – Menu Structure ............................................................................................. 163Appendix C – Unavailable Features for PSTN ..................................................................... 164Index ..................................................................................... 165