Module Settings (Support For U50/U100) - Zycoo CooVox-U20 User Manual

7.3 Module Settings (Support for U50/U100)

When use the module except FXO/FXS/GSM. You need to set the module parameters with the
page.
Click【System】->【Module Settings】:
Module Type:

FXS/FXO/GSM module

E1/T1 module
Item
Mode
Signaling
Framing
Coding
CRC4

ISDN BRI module
Select the module type
Default type. You don't need set anything for
those modules.
Explanation
Set E1 or T1 mode for the module.
Set the module signaling.
One of 'd4' or 'esf' for T1; 'cas' or 'ccs' for E1.
One of 'ami' or 'b8zs' for T1; 'ami' or 'hdb3' for E1.
Enable CRC4 Verification.
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