HI ANNY
ABIS IS DISCOVERED BY COMPANY RELETED TO FRANCE AND IN FRANCE MEANING OF ABIS IS (ANOTHER A INTERFACE).ABIS IS CONNECTION B/W BSC TO BTS AND A INTERFACE IS CONNEC. B/W BSC TO TRAU.ABIS HAVE 2MbpS SPEED ON E1 LINK AND SUPPORT MAX 14 TRX IT MAY BE INCRESE TO 18 BUT SPATIAL ARREGMENT IS REQUIRED.