1. A computer-implemented method comprising: associating, in a computing apparatus, a plurality of call-in references of a plurality of different regions with respective different language preferences, wherein each of the call-in references is local to a first one of the regions but not to at least a second one of the regions; identifying, by the computing apparatus, regions in which callers reside; providing, by the computing apparatus, listings of callees, the listing presented to the callers in different regions including: different call-in references for receiving calls from the callers; and different user inputs about services provided by the callees in prior calls filtered according to regions in which the callers reside; receiving, in the computing apparatus, the calls via the call-in references from the callers; customizing, by the computing apparatus, interactive voice response prompts presented during one or more of the calls to one or more respective callers based at least in part on the language preferences associated with the call-in references via which the calls are received; and connecting the calls to the callees based on responses to the interactive voice response prompts.
1. A computer-implemented method comprising: associating, in a computing apparatus, a plurality of call-in references of a plurality of different regions with respective different language preferences, wherein each of the call-in references is local to a first one of the regions but not to at least a second one of the regions; identifying, by the computing apparatus, regions in which callers reside; providing, by the computing apparatus, listings of callees, the listing presented to the callers in different regions including: different call-in references for receiving calls from the callers; and different user inputs about services provided by the callees in prior calls filtered according to regions in which the callers reside; receiving, in the computing apparatus, the calls via the call-in references from the callers; customizing, by the computing apparatus, interactive voice response prompts presented during one or more of the calls to one or more respective callers based at least in part on the language preferences associated with the call-in references via which the calls are received; and connecting the calls to the callees based on responses to the interactive voice response prompts. 2. The method of claim 1 , further comprising: determining patterns in calls made using the call-in references and language preferences of callers indicated in the calls made using the call-in references; wherein the customizing is further based on the patterns.