This variable indicates the variety of DS1 Line implementing this circuit. The type of circuit affects the number of bits per second that the circuit can reasonably carry, as well as the interpretation of the usage and error statistics. The values, in sequence, describe: TITLE: SPECIFICATION: other(1) (not supported in this release) esf(2) Extended SuperFrame DS1 (T1.107) d4(3) AT&T D4 format DS1 (T1.107) slc96(4) (not supported in this release) e1(5) ITU-T Recommendation G.704 (not supported in this release) e1Crc(6) ITU-T Recommendation G.704 (not supported in this release) e1Mf(7) G.704 multiframing enabled e1CrcMf(8) G.704 multiframing enabled and crc enabled e1Unframed(9) E1 with no framing ds1Unframed(10) Ds1 with no framing For clarification, the capacity for each E1 type is as listed below: e1 or e1Crc - e1, with framing, no signalling = 31 x 64k = 1984k e1Mf or e1CrcMf - e1, with framing, signalling = 30 x 64k = 1920k For further information See ITU-T Recomm G.704 Default is set to esf for T1 platforms and e1CrcMf for E1 platforms. BAN E1: esf,d4 T1:e1,e1mf,e1crcmf