Related Settings; Using Profiles With Fax - AudioCodes MP-11x Configuration Manual

Audiocodes T.38 FAX Configuration Guide
received T.38 packets from the internal network. To resolve this problem, the device
should be configured to send CNG packets in T.38 upon CNG signal detection
0 – don't use CNG detector mode (default)
1 – Relay
2 - T.38 will start after CNG detection (applicable only for SIP and not recommended)
CNGDetectorMode = 0
IMPORTANT NOTE: The INI file only shows a parameter value when it differs from the
default value. When a parameter is not found in the INI file, it can be assumed to
be at the default value.
2.3

Related Settings

Dynamic Jitter Buffer Minimum Delay
0 to 150 msec (default = 70)
The Dynamic Jitter Buffer Minimum Delay could vary widely based upon the quality of
the IP network. A setting of 10 is recommended as a starting point with the possibility
that increases (in steps of 10 msec) may be necessary if packet loss, delays or bursting
cause issues in the voice stream.
DJBufMinDelay = 10
Dynamic Jitter Buffer Optimization Factor
0 to 13 (default = 7)
Dynamic jitter buffer frame error/delay optimization.
DJBufOptFactor = 10
Note that this setting dynamically shifts to 13 during fax and modem calls.
2.4

Using Profiles with FAX

Profile configuration parameters are used to create the IP Profile table. Each IP Profile
can be referenced by its ID to override those which are typically configured separately
using their individual "global" parameter settings. This allows you to assign these IP
Profiles to Tel-to-IP Routing rules, IP-to-Tel Routing rules, or IP Groups to provide
different behavior for different phone numbers, prefixes, or IP destinations. In simple
configurations, these profiles are not used and the global settings (described above) will
be in effect (and the Profile ID will be zero). IF THERE IS NO NEED TO HAVE
DIFFERING BEHAVIOR FOR DIFFERENT IP DESTINATIONS, YOU SHOULD
NOT NEED TO USE PROFILES. In these cases, this section can be disregarded.
When using non-zero profiles, take care that you make the correct settings in each profile
to enable T.38. As example, in the IP to Trunk Group Routing table, we may begin to
Verizon T.38 FAX Configuration Guide for AudioCodes MP-11x
Version 1.0
Page 15
30-APR- 2011
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