Hi, I guess we would need to know what specific board or product you are using in this case. But I did manage to see further detail in the GC ISDN Tech guide here: www.dialogic.com/.../hmp30win More specifically this exert from section 4.11: 4.11 Using Direct Layer 2 Access When using Dialogic® Springware Boards, to activate layer 2 access, parameter 0024 in the firmware PRM file must be set to a value that includes the bit represented by the value 01H. See Table 26, “Modifiable Protocol Parameters for Dialogic® Springware Boards”, on page 192 for more information. When using Dialogic® DM3 Boards, direct layer 2 access is supported on a per trunk basis. Direct layer 2 access is enabled by including the following command in the appropriate [CSS.x] section of the CONFIG file, where x identifies a specific trunk (span): Setparm=0x9,1 ... Regards, Jeff
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