Toll fraud is long-standing issue that impacts many organizations telephony systems.  This illicit use of a telephony system to make calls, not necessarily long distance or international calls, is difficult but not impossible to combat.  In a Cisco VoIP environment you can use CUCM Class of Service, Cisco Native Gateway Toll Fraud Prevention Applications, Gateway Class of Restriction and Unity Connection rules to try and prevent these unauthorized calls, but even beyond these measures you may still be susceptible to calling vulnerabilities.  It’s a good idea to setup CDR alerts to keep you informed of possible toll-fraud.

 

Within the United States and Canada there are area codes that can be reached without dialing an international code. This is normally where Toll Fraud becomes an issue.

 

242     Bahamas

246     Barbados

264     Anguilla (split from 809)

268     Antigua and Barbuda

284     British Virgin Islands

340     US Virgin Islands: St Thomas, St John

345     Cayman Islands

441     Bermuda

473     Grenada

649     Turks and Caicos Islands

664     Montserrat

670     Northern Mariana Islands

671     Guam

758     St. Lucia

767     Dominica

784     St. Vincent and Grenada

787     Puerto Rico

809    Caribbean, Bermuda, Puerto Rico, Virgin Islands

868    Trinidad and Tobago

869    St. Kitts/Nevis

876    Jamaica

900    Pay Per Call

939    Puerto Rico

976    Pay Per Call

 

Variphy Insight offers the ability to alert on these calls, keeping Telephony System administrators always aware of possible problematic conditions.

 

 

Step 1.  Login to your Variphy Insight system, from the Left Navigation Panel select Call Analytics and choose your corresponding cluster.

 

Step 2. Click here to read more