AudioCodes MP-11x Configuration Manual page 16

Audiocodes T.38 FAX Configuration Guide
define rows which have non-zero IP Profile ID. IpProfile_IsFaxUsed should be
duplicated with the parm setting "IsFaxUsed". This is becuase the Profile setting takes
precedence over the "global" settings for calls matching the profile. If users have set the
"global" parameter correctly, it can be difficult to determine that the profile setting
overwrote the IsFaxUsed parameter setting to another value since the call in question
used a profile (although there will be a SYSLOG for this if the debug level is set). This is
true for other parameters duplicated in profiles, where the profiles setting take precedence
over the single parm setting in the board.ini file.
Figure 9 – Web View IP to Trunk Group Routing (non-zero IP Profile ID)
In this case, make sure to duplicate the desired Fax settings for each Profile. Under
Coders and Profile Definitions, choose IP Profile Settings, set the Profile ID (in this
example 1), and set the Fax Signaling Method (IpProfile_IsFaxUsed) to "T.38
Relay". Note that many other parameters require similar attention (notably
IpProfile JitterBufMinDelay IpProfile JitterBufOptFactor
_ and _ ).
Verizon T.38 FAX Configuration Guide for AudioCodes MP-11x 30-APR- 2011
Page 16
Version 1.0 Page 16 of 42