Matrix Telecom ETERNITY NE - Page 158

148 Matrix ETERNITY NE System Manual
A different Version can be configured for each SIP Trunk. This is useful when you have proxy SIP
Trunks registered with different service providers supporting different versions.
The valid range for the Version is from 0 to 3. By default, Version is set as 0.
• Set the Max Rate (kbps) to: 2.4, 4.8, 7.2, 9.6,12, or 14.4.
This parameter controls the Fax image transfer speed. As EQM is inversely proportional to Fax Max
Rate, if you receive poor quality fax, the Fax Max Rate should be reduced. Default: 14.4 kbps.
• Set the Packet Period (msec) to: 5, 10, 15, 20, 25, 30, 35, or 40. Default: 40.
This parameter 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 Image Redundancy Level to: None, 1, 2, or 3. Default: 1.
The Image Redundancy Level is redundancy level for output Image, which can be from 0 to 3.
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, you will
receive good quality fax.
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 Data Redundancy Level to: None, 1, 2, 3, 4, 5, 6, or 7. 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.
• 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. Default: G.711 A-law.
• To improve the quality of Pass Through Fax reception on a Digital Trunk (Mobile), configure Pass
Through FAX Rx Gain (SIP to Digital Trunk Call). This parameter has relevance when you select 'Pass
Through' as the Fax Type.
• Select dB level for Data Gain, from -31 to 31. Default: -11 dB.