MX100E SIP-ISDN Gateway Series User Manual
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Figure 5-6 FoIP Configuration Interface
Table 5-7 FoIP Configuration Parameters
Name Description
Both T.38 and T.30 fax services are supported. It’s recommended to use T.38 fax services.
For T.30, no other parameters need to be configured.
For T.38, parameters available are as follows
Jitter buffer
Set the extent of T.38 jitter buffer, and the default is 250. The valid range is 0 ~ 1000 in
milliseconds.
Receiving port for
FoIP
Set whether to open a new port when the gateway is switching to T.38 mode, and by default,
original voice port will be used.
Open a new port: Use the new RTP port;
Use original voice port: Use the original RTP port that created on call set.
ECM
Determine whether to use corrective mode of fax. By default, it is not selected.
V.21 detection
Choose whether to enable V.21 signal detection. The function is enabled by default.
Receive gain
Set the receiving gain of T.38 fax, with the default of -6dB.
Transmit gain
Set the transmission gain of T.38 fax, with the default of 0dB.
Packet size
Set the packet size of T.38. 30 milliseconds is the default value.
Redundancy
Set the number of the redundant frames in T.38 data package, default is 4.
5.3.6 ISDN
In case of full configurations, the MX100E has one 4T1/E1 card, with four interfaces numbering ISDN1
to ISDN4 from left to right. You are recommended to set parameters corresponding to the interface
configured. Parameters for each interface are identical. You can set different parameter values for each
interface as needed. For parameter setting, take the ISDN1 as an example.
After login, click
ISDN > ISDN1
tab to open the configuration interface.
