Method and apparatus for conforming the speed of a called terminal adapter to the speed of a calling terminal adapter

摘要: Method for automatically adapting and configuring the speed of a terminal adapter (30) to rate 56 Kbps or 64 which is used by calling (20). After sending CONNECT message via ISDN NETWORK (20) in accordance with CCITT Q.931 Recommendations, called TA initialized then continuously transmits (204) an alignment pattern ALL-- ONES while starting first timing process (T1). This will cause switch if validation does not succeed. The method involves step checking (206) reception ZEROS coming from said before end predetermined period If this case, be performed comprises whether received within second (T2), case configuration validated. On contrary, at (T1), initiated based on detection so-called data flow. defined as being number n bytes bit every byte set one. Additionally, (210) continuous receiving during (T1) long yet received, validating (209, 213) rate.