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IE's heximal value.
- add <action application="export" data="freetdm_iam_fwd_ind_HEX=2301"/>
to dialplan with expected hex value. If the outgoing ftdm channel's
forward indicator needs to be changed, "export" needs to be put in the
incoming channel's dialplan to set this variable value accordingly.
- this implementation takes bits of A, CB, D, E, F, HG, I from the hex
value. Bits of KJ, L, P-M are not taken from the hex.
- How to calculate hex value with wanted bits:
. the hex value is H-A-P-I, H is the highest bit to A, and next is P-I.
I is the lowest bit in the whole field, and H is the highest bit in
the whole field. Refer to Q.763 chapter 3.23.
. use a text pad to fill in the bits with 0 and 1. eventually fill all
the 16 bits
. copy the binary value into a calculator and convert it to hex