You should also:
■Ask users to tell you if any of the following suspicious activity occurs:
—Inability to log into PARTNER Voice Messaging.
—Lost mail messages or altered greetings.
—Inability to get an outside line.
—Series of calls with silence on the other end or with the caller hanging up.
—Sudden increase in wrong numbers.
—Caller complaints that your lines are busy.
—Callers claiming to represent the “phone” company. Ask for a callback number.
—Callers trying to obtain sensitive information or asking for assistance in placing outside or
—Increases in internal requests for assistance in making outside calls (particularly international calls or requests for dial tone).
■Never distribute the office telephone directory to anyone outside the company.
■Collect old office telephone directories and shred them.
■Never discuss your telephone system’s numbering plan with anyone outside your company.
■Any time a call appears to be suspicious, in the continental U.S., contact your Lucent Technologies Representative or local Authorized Dealer.
11