Chapter 3 – Installing Software
To configure channels:
1.From the Select Channel drop‐down list, select the channel you want to configure.
2.In the Fax/Modem Parameters group:
a.From the Set Max Baud Rate drop‐down list, select a rate that matches a fax machine (2400 to 14400 bps).
b.Do not change the setting in the Fax Volume drop‐down menu. Such changes can adversely impact the modem’s operation.
c.From the Jitter Value drop‐down list, select the desired time for packet reassembly.
d.From the Mode drop‐down list, select T.38 or FRF 11.
e.To allow modem traffic through the VOIP system, check the Modem Relay Enable checkbox.
3.Do not change settings in the Dtmf group. Adjusting Voice Gain and DTMF may adversely affect quality.
4.In the Selected Coder drop‐down list, select a coder or allow automatic negotiation
5.In the Advance Features group:
● To not send silence packets, check Silence Compression.
● To remove echo and improve voice quality, select Echo Cancellation.
● To recover some bad packets, check Forward Error Correction.
6.Use the Auto Call / OffHook Alert group to allow automatically calling of a remote VOIP without dialing. This is described in greater detail in Chapter 4.
7.In the Dynamic Jitter group, change values if necessary (details in Chapter 4)
● Select any Automatic Disconnection options needed to ensure lines are not left “open”
● Configurable Payload Types are best left at their defaults. Not in the
8.Configure each channel as described in the preceding steps. You can use the Copy Channel button to quickly transfer the settings from one channel to another.
MultiVOIP® Voice/Fax over IP Gateways
