The Feature Codes for the DTTA are 6312 and 6313. The 6313 includes a short Blind Swap Cassette (BSC) which is required for installing the DTTA in machines that use the BSC (for example, the pSeries 650-6M2). The only additional hardware that may be required specifically for the DTTA are the H.100 cables. The DTTA uses standard RJ45 cables for connection to telephony networks. The RJ45 cables are not provided by IBM but can be bought separately.