Link - Tx Signaling per TS, for TSs having TS Type=Voice (agnTsType=voice(2)). It monitors what is sent to Link for the selected TS, for A,B,C,D Signaling Bits. Bit 1= LSB Bit 8= MSB Bit 1-2 = A Signaling Bit: 00='0' ; 01='1' ; 10=not used ; 11=NA Bit 3-4 = B Signaling Bit: 00='0' ; 01='1' ; 10=not used ; 11=NA Bit 5-6 = C Signaling Bit: 00='0' ; 01='1' ; 10=not used ; 11=NA Bit 7-8 = D Signaling Bit: 00='0' ; 01='1' ; 10=not used ; 11=NA