
INTEGER 
null(0), callInitiated(1), n2(2), outgoingCallProceeding(3), n4(4), n5(5), callPresent(6), n7(7), n8(8), incomingCallProceeding(9), active(10), disconnectRequest(11), disconnectIndication(12), n13(13), n14(14), n15(15), n16(16), n17(17), n18(18), releaseRequest(19), notApplicable(20), n21(21), n22(22), n23(23), n24(24), n25(25), n26(26), n27(27), n28(28), n29(29), n30(30), n31(31), n32(32), n33(33), n34(34), n35(35), n36(36), n37(37), n38(38), n39(39), n40(40), n41(41), n42(42), n43(43), n44(44), n45(45), n46(46), n47(47), n48(48), n49(49), n50(50), n51(51), n52(52), n53(53), n54(54), n55(55), n56(56), n57(57), n58(58), n59(59), n60(60), n61(61), n62(62), n63(63) 
