Recommendation Q.2931 provides basic call and connection control for point-to-point connections in a B-ISDN. This amendment to Recommendation Q.2931 has been prepared to allow the creation of Recommendation Q.2961.2 to contain all the information on the encoding of the Broadband bearer capability information element in a manner that is consistent with the second edition of Recommendation I.371. This amendment is issued in conjunction with Recommendation Q.2961.2, which is designed to be compatible with implementations conforming to the first edition of Recommendation I.371 and Recommendation Q.2931 (1995). Within Recommendation Q.2961.2, the changes from Recommendation Q.2931 (1995) are as follows: - octet 5a of the Broadband bearer capability information element was restructured to support ATM transfer capabilities (ATCs) specified in the second edition of Recommendation I.371. This restructuring is backward compatible with the first edition of Recommendation Q.2931 (i.e. values of octet 5a defined in the first edition of Recommendation Q.2931 still have the same meaning). These values may be either those used on transmission and reception, those not generated by terminal equipment complying with Recommendation Q.2961.2, or those that are reserved.