June 2004
Intermediate to advanced
408 pages
12h 6m
English
book
THE ROAD TO IP TELEPHONY: HOW CISCO SYSTEMS MIGRATED FROM PBX TO IP TELEPHONY
by Stephanie L. Carhee
Content preview from THE ROAD TO IP TELEPHONY: HOW CISCO SYSTEMS MIGRATED FROM PBX TO IP TELEPHONY
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The Road to IP Telephony
(116)
4 IP phones carry the same potential for abuse as PBX phones, including enabling call
forwarding to a secondary number and unauthorized long-distance charges. Take steps
to ensure that all lobby phones and other courtesy phones have restricted features.
5 Because IP phones run off the data network, they can create a security breach if access
is unrestricted on public phones, allowing visitors to download sensitive data from the
corporate intranet. Ensure that public phones are secured against fraud.
6 If resistance to change is not properly anticipated, it creates havoc. Gain acceptance by
taking away the mystery ...
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