den0@midway.uchicago.edu (funky chicken) (09/05/90)
In the process of recording information for billing, are there any times when the originating or destination number is not recorded? I suspect there are. For example, I recall that, in SxS offices with ANI, each phone number's sleeve wire was cabled to a grid of bus panels. Each directory number terminated on a card which held 10 numbers. An identifier would come by and hierarchically (sp?) scan this bus system for a 5800 hz which identified the calling number. However, my memory tells me that all the directory numbers associated with a PBX were fed into a single number network associated with the primary or billing number. If this were the case, wouldn't ANI always identify the calling number as being the primary number, regardless of the actual line used? Is this true and are there similar cases with ESS? I would think it would be wasteful to record all of the numbers called on an AMA tape if many of them do not result in charges. When I used my modem extensively, I had a service which allowed me to make unlimited calls within my LATA for a a monthly fee of $25. Except for analyzing traffic patterns, there would seem to be no reason to keep detailed logs of calls in this sort of situation. Hmmm. I suppose that it is, unfortunately, improper to refer to SxS in the past tense. Matt Funkchick