A telecommunication exchange system in which the fixed location subscribers, like the mobile station subscribers, are provided with individual identifications which are used to assign communication channel pairs to each call to and from both fixed and mobile subscribers. This is accomplished by use of...http://www.google.fr/patents/US5412760?utm_source=gb-gplus-shareBrevet US5412760 - Circuit arrangment for switched networks consisting of exchanges, preferably telephone networks
Circuit arrangment for switched networks consisting of exchanges, preferably ...