Problem:
Firewall protection at Old National’s Internet threshold, multi-level as it was, could do nothing to stop viruses and unlawful access coming in over unsecured, authorized modems on corporate phone lines. When a worm entered Old National’s data network through a PC modem connection, and took off inside the network causing congestion, Jeff Miller, Old National’s Telecom Manager and Network Information Security Officer, knew he needed technology to find and control PC modems.

Miller knew security solutions are notoriously difficult to cost-justify. Typically, they only eliminate the possibility of financial loss, rather than delivering specific cost savings or productivity improvements.He wanted a solution that would deliver both security and clearly demonstrable business benefits.

Solution:
Research into the problem led Miller to SecureLogix’s ETM® System as a possible network security solution. Demonstration of the system’s powerful combination of management, cost allocation, and security capabilities during the ensuing TeleWatch Secure SM Assessment Service, a 90-day on-site trial, convinced Miller that he had found what he was looking for—security plus very tangible savings for Old National. The SecureLogix® ETM System has been providing telephony management, cost allocation, and security for Old National Bankcorp since May 2002.

Benefits:
Using one of the ETM Usage Manager’s over 50 pre-defined report templates, a resource utilization report quickly revealed that a large number of long-distance calls were being routed directly over the PSTN (Public Switched Telephone Network), instead of being carried over the bank’s T1 lines. A few simple corrections in the configuration of Miller’s PBXs’ automatic route selection codes eliminated thousands of dollars of waste.

Another report revealed a surprising amount of money being spent on calls to directory information every month. Once Miller could quantify the volume of information calls, he was able to negotiate a much more favorable rate with a corporate provider—reducing his cost-per-call by 65%. ETM System reports also uncovered opportunities where Miller was able to negotiate better discounts on long distance rates, based on volume of calling minutes.

Old National has reaped many other benefits with the ETM System. For example, Miller uses the ETM System’s health-and-status monitoring capabilities to monitor for service or availability problems on the tie lines between their 36 PBXs. He can now provide proof to their carrier or local service provider when he is seeing errors on a line. Previously he could only rely on their PBXs to show near-end or far-end data, and his only recourse was to call the carrier, a process that could take hours of back-and-forth and “finger-pointing”. The ETM System can report slip seconds and decibel loss data, which Miller can use to hold their carrier more closely to their Service Level Agreements, or show to their PBX vendor, which maintains certain levels of PBX maintenance control.

Using the ETM System’s unique ability to distinguish call type (modem, voice, fax, and video) on all inbound and outbound traffic, Miller discovered a surprising volume of ISP traffic on Old National’s phone lines. The problem of unauthorized modems was greater than expected. “All I need is for someone to be connected to a modem and the network at the same time, and they’ve provided a prefect way for an intruder to bypass my firewall,” Miller says.

The ETM Voice Firewall allows Miller to configure policies that block unauthorized modem traffic, or all calls to (or from) specified numbers. But Miller says that he has not needed to implement call termination policies. “I get an email every time someone calls an ISP,” he says. “I can throw quite a surprise into people if I call them up right away and ask them ‘Did you disconnect your PC from the network first?’ I see where the call is being made and call the user right away. That’s vital for me to maintain the security of our telecom environment.”

Finding and acquiring a solution that delivers benefits like the SecureLogix ETM System does, has further implications for professionals like Miller. “A good acquisition builds your credibility with upper management,” he says. “That’s important when it comes to the next purchase you want to make.”

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