Cortelco 7150 - Manual (Page 4)

OPTIONS BUTTON .................................................................................... 17
MESSAGE ERROR ..................................................................................... 18
NO DATA SENT ......................................................................................... 18
PRIVATE CALLS ........................................................................................ 18
UNKNOWN CALLS .................................................................................... 18
TOLL CALLS ............................................................................................. 18
FORWARDED CALLS ................................................................................ 18
TELEPHONE SERVICE PROBLEMS ................................................................. 19
MAINTENANCE INFORMATION ....................................................................... 20
TELEPHONE REPAIR/FCC ................................................................................ 21
INDEX ............................................................................................................. 23