Matrix Telecom ETERNITY NE - Page 358

348 Matrix ETERNITY NE System Manual
• Set the Packet Period (msec) to the desired value. Default: 40msec.
The packet period sets the sampling rate of TDM signal. If you cannot improve fax quality by lowering Fax
Max Rate, you may reduce the Fax Packet Period.
When you reduce the Fax Packet Period, the fax image will be sent at lower speed. EQM is inversely
proportional to Fax Packet Period.
Do not change the default settings unless it is required.
• Set the Image Redundancy Level to the desired value. The Fax Image Level is redundancy level for
output Image, which can be from 0 to 3. Default: 1.
Fax Image transfer speed is inversely proportional to this parameter. If this parameter is low then fax is
transferred faster. EQM is directly proportional to this parameter. If this parameter is high, good quality fax
can be achieved.
You may increase the Fax Image Level from 1 to 3 if the quality of fax does not improve with Fax Max Rate
and Fax Packet Period.
Level 0 means no redundancy.
• Set the Data Redundancy Level to the desired value. Default: 3. This is a redundancy level for T.30
control data. Fax Data Level can be set from 0 to 7. Level 0 means no redundancy. Redundancy level
increases from 1 towards 7. The higher the level set, the slower would be the fax transmission.
EQM is directly proportional to this parameter. The higher the Fax Data Redundancy Level, the better the
EQM.
Pass Through Fax Codec
• When the Fax option is selected as Pass Through, you must configure the Pass Through FAX Codec as
supported by the Remote Peer. The Remote Peer may be a Proxy Server or a SIP Device.
You may select the Codec as G.711 A-law or G.711 LawWhile sending a fax this Codec is sent in the
re-INVITE message to the Remote Peer, but while receiving a fax SARVAM UCS will accept the fax with
any Codec.
Pass Through FAX RX Gain (SIP to Digital Trunk calls)
Configure this parameter if you selected Pass Through
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as Fax Type, and the fax is to be received on a digital
trunk.
• Select the dB level for Data Gain (dB) from -31 to 31 dB. Default: -11 dB.