Additional phone features136Using Media Gateway 1000BThe Media Gateway 1000B (MG 1000B) provides a means of extendingCS 1000 Release 4.5 features to one or more remotely located branchoffices using the Branch Office feature. A branch office is a remotelocation in the network where IP Phones, PSTN access, and TDMtelephones are located. Contact your system administrator to see if thesefunctions are available for your use.The Media Gateway 1000B (MG 1000B) telephone can operate in Normalor Local Mode.Normal ModeThe telephone registers with the Main Office and receives telephoneservices from the Main Office. At any time while using Normal Mode, youcan check Local Mode functionality (make and receive calls) by enablingLocal Mode and returning to Normal Mode. After testing, you can return toNormal Mode (see “Using Resume Normal Mode” on page 137) or waitfor 10 minutes.Local ModeIf the WAN connection goes down, the IP Phone loses communicationwith the Main Office TPS. It then registers with the MG 1000B andreceives telephone services from the MG 1000B. Features such asPersonal Directory, Redial List, and Callers List are not available whenoperating in Local Mode. When in Local Mode, the telephone displays themessage LOCAL MODE.ServerUnreachable (1)Network problem. Notify systemadministrator if theproblem persists.ServerUnreachable (2)Network problem. Notify systemadministrator if theproblem persists.Table 8: Troubleshooting Virtual Office (Part 3 of 3)DisplayedMessage Probable Cause Actions
