1. The AX IMA does not support Unframed E1/T1.
2. G.704 Basic and Multiframe is described in the ITU G.704 specs. See Table 5A for basic and 5B for multiframe.
G.704 Basic is: 1) PCM 32 (unframed) 2) PCM 31 (no multiframing) - AX/4000 uses this one. 3) PCM 31C (CRC Multiframing, no TS-16 Multiframing)
Multiframe is: 1) PCM 30 (TS-16 Multiframing, no CRC Multiframing) 2) PCM 30 (TS-16 Multiframing and CRC Multiframing) - AX/4000 uses this one.