168 CHAPTER 10: T ROUBLESHOOTINGConnecting aComputer to aSerial PortOn the SuperStack 3 Call Processor, the NBX 100 Call Processor, and onsome of the NBX cards, you can connect a computer to a serial port and,by running a terminal emulation program on the computer, you canobtain information about the status of the card or the NBX system.NBX NetSet isvery slow inresponding.Your network uses aproxy server forInternet access.A common networking practice is toemploy a proxy server to shield yournetwork from intrusion by unauthorizedusers. However, communications withNBX NetSet do not need to pass throughthe proxy server. To speed access to NBXNetSet, configure your browser to accessthe NBX system without going throughthe proxy server.All greetings andprompts aremissing. Forexample, callingthe AutoAttendant or auser’s mailboxproduces silenceinstead of theexpectedgreetings.The wrong messagecompression formatwas selected.Prior to R1.1.0, all audio used MuLawcompression. With R1.1.0, audio, that is,any prompt, message, or greeting, wasrecorded using ADPCM compression. Ifyou are running R1.1.0 or higher, youmust leave the compression format set toADPCM. The ability to select the formatallows you to migrate existing data into anolder database for backwardscompatibility.In release R2.6 and all later releases, thecompression is set to ADPCM and youcannot change it.Caller IDinformation isnot appearingwhen an outsidecall arrives.Your local telephonecompany is notproviding Caller IDservice to you.Caller ID is typically an optional servicewhich you must order from yourtelephone company.You may be able to see caller ID bynumber or by name (or both) dependingon the service your telephone companyprovides.You are answeringthe telephone beforethe Caller IDinformation is fullyreceived.Caller ID information does not appearimmediately. It usually appears betweenthe first and second rings. If you answerthe call too quickly, the information isnever received. If you transfer the call, theperson you transfer the call to sees yourID instead of the ID of the original caller.Table 24 Troubleshooting Actions (continued)Symptom Possible Cause Suggested Action
