Patton electronics SmartNode Series Software Configuration Manual page 391

SmartWare Software Configuration Guide
Step
3 node (pf-voip)[ name ]# fax dejitter-
(optional) max-delay buffer-size
node (pf-voip)[ name ]#fax volume
Step 4
(optional) volume
5 node (pf-voip)[ name ]# fax max-bit-
(optional) rate { 2400 | 4800 | 7200 | 9600 |
12000 | 14400 }
6 node (pf-voip)[ name ]# fax detection
(optional) { ced-tone | fax-frames }
7 node (pf-voip)[ name ]#no fax error-
(optional) correction
8 node (pf-voip)[ name ]#no fax hdlc
(optional)
VoIP profile configuration task list
Command
30 • VoIP profile configuration
Purpose
For proper operation a dejitter buffer is used on
the receiver. The dejitter period can be adjusted to
compensate for the jitter imposed by the network.
The default value is 200ms which should be ok for
almost any transmission network. Only in excep-
tional cases it may be necessary to increase this
value (maximum 400ms). The dejitter buffer implic-
itly applies the operation mode 'static-data', i.e.
minimizes the packet loss.
Adjust the volume of the fax signals re-generated
on the receiver side. The volume is in dB, in the
range -18.5 ... -3.5 (Default: -9.5dB).
Sets maximum allowed bit-rate for fax relay
(Default 14400 Bit/sec).
Selects the method how fax transmissions are
detected, by the CED tone or by arriving T.38 fax
frames (Default: ced-tone).
Disables error correction mode (Def: enabled). If
the error correction mode is disabled, the con-
nected fax devices cannot negotiate error correc-
tion mode. Connections with error correction mode
enabled are more sensitive to packet loss. Disable
error correction mode when packet loss is more
than 2–3%.
Note Error correction mode does
not cancel IP packet loss.
Disables HDLC image transfer (Def: enabled). If
HDLC mode is enabled, the SmartNode removes
bit stuffing, checks CRCs of fax frames arriving
from the PSTN and regenerates the CRCs before
sending fax frames towards the PSTN. HDLC can
only be enabled together with error correction.
Disable HDLC when the fax peer does not support
this mode.
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