Avaya Communication Manager Administrator's Manual page 1133

Which mode the system uses to route the fax, modem, or TTY calls
●
Whether or not redundant packets will be added to the transmission for higher reliability
●
and quality
These characteristics must be assigned to the codec set, and the codec set must be assigned
to a network region for endpoints in that region to be able to use the capabilities established on
this screen.
!
CAUTION:
If users are using Super G3 fax machines as well as modems, do not assign
CAUTION:
these fax machines to a network region with an IP Codec set that is
modem-enabled as well as fax-enabled. If its Codec set is enabled for both
modem and fax signaling, a Super G3 fax machine incorrectly tries to use the
modem transmission instead of the fax transmission.
Therefore, assign modem endpoints to a network region that uses a
modem-enabled IP Codec set, and assign the Super G3 fax machines to a
network region that uses a fax-enabled IP Codec set.
Figure 405: IP Codec Set screen page 2
change ip-codec-set n
Maximum Bandwidth Per Call for Direct-IP Multimedia: 256:Kbits
FAX
Modem
TDD/TTY
Clear-channel
IP Codec Set
Allow Direct-IP Multimedia? y
Mode Redundancy
relay 0
off 0
us 0
n 0
IP Codec Set
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Issue 2.1 May 2006 1133