MTG1000B Trunk Gateway User Manual
MTG1000B Trunk Gateway User Manual
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Copyright @ 2011-2015 Dinstar
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4.8
PSTN Group Config
In this section, you can group several PRI trunks or SS7 trunks together, so when one trunk is in an outage,
communication can turn to another trunk in the same group.
4.8.1
E1/T1 Parameter
Select the checkbox on the left of an E1/T1 port, and click the
Modify
button to modify E1/T1 parameters.
Parameter
Explanation
Port No.
The No. of each E1/T1 port
Work Mode
E1 or T1
If E1 is selected for one port, the work modes of all ports are E1.
PCM Mode
PCMA(A LAW) or PCMU(Mu LAW)
If A LAW is selected for one port, the work modes of all ports are A LAW.
Frame Mode:
DF
CRC-4
CRC4_ITU
Frame modes of E1 port include DF, CRC-4, CRC4_ITU, and the default value is
CRC-4;
Frame formats of T1 port include F12, F4, ESF, F72, and the default value is F4.
