Wide Area Centrex Toll with Novel Translation

摘要

A method of providing multi-switch business group(MBG) services at each of a plurality of locations isdescribed. The MBG services can be provided for calls madefrom a calling party served by an originating switch at onelocation to a called party served by a terminating switch at alocation serviced by an inter-exchange carrier (IEC). When thecalling party goes off-hook, a determination is made ofwhether the call is made from a centrex line. Digits dialedby the calling party are then collected at the originatingswitch. A determination is then made of whether the dialeddigits contain an access code indicative that the call is tobe routed to one of the plurality of locations which is servedby an IEC. If the call is to be routed via an IEC, theinitial address message (IAM) required for the IEC call, ismodified to include MBG service information. This will permitMBG services to be offered between the calling party and thecalled party over public CCS7 trunks routed via an IEC.