Ft2ib

Figure 10.6-2 Failure treatments.

Table 10.6-2 shows the contents of IE.6 (cause) and IE. 12 (signal) in the RLCOM, DISC, and PROG messages for the various failures. The contents generally do not depend on the bearer service, or on whether the calling TE has NPIBS. However, in failure F2 (unassigned number), IE. 12 is not included on speech- or 3.1 kHz audio calls, and is set to "reorder-tone" on 64 kb/s calls.

When the exchange is giving an FT1-IB or FT2-IB treatment, the PROG message also includes an IE. 11 (progress indicator) with value "in-band information now available."

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