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Alternate Routes

If the carrier cannot process a call, or the payphone user tells an operator that he wants to use a different carrier, it will return a Splashback Tone. Specify the splashback Tone in the pull-down menu; also specify an Alternate Splash Route to use in this event. Select a route to use if the carrier returns a busy signal in the Alternate Busy Route field. When using Lata Screening, the Alternate Splash Route is used to redirect the payphone to use a different route. Lata Screening screens dialed numbers for calls that are going to the sama Lata. Typically, this is used for calls that should go through the LEC (Local Exchange Carrier). When screening a call in this way, the payphone first looks in the Lata Screening column in the Cost record. If there is a Yes for the band that the dialed number falls in, the payphone next looks in the Call Processing information. If the Lata Screening column here is also set to Yes for the Call Type, then the phone looks at the Route that was determined to be used for this call, and instead uses the route specified in the Alternate Splash Route box. The number in this box is looked up in the Route Assignments window, and that route is used instead. If either the Cost or the Call Processing windows has a No in the Lata Screening column, the call will be placed normally, using the route found in the Call Processing window (or the Cost window, if you have not yet Condensed Call Processing and Route Records).