This attribute indicates the usage, process and way of the specific PABX TS towards its destination: unused - the TS is not used (no processing, no destination). compressed - the TS is used, sent for compression to an internal port (for VF-PBX cards: 1..6 for of either the same card or a VF-PBX card of the same group). For VF-24/30/48/60 - 'compressed' represents 'compressed Voice' (to differentiate it from 'compressedCcs'). In this case, the TS is compressed by an internal port (1..8). transparent - the TS is used; no processing. It is sent directly for Bypass to a ML card the VF port/TS is linked to. compressedCcs - supported only by VF-24/30/48/60 cards. The TS is used; sent for compression to the CPU. mng - the TS is used for Management (this option is used when the external port is connected to another product that has to be managed via this dedicated TS. ccs1..ccs8 - supported only by VF-24/30/48/60 cards. Compressed TS that comes from a bundle of V5.1 or V5.2 PBX. ss7n1..ss7n8 - supported only by VF-24/30/48/60 cards. Compressed TS that comes from a bundle of V5.1 or V5.2 PBX. ss7n1 can work versus Vmux having prtExPh1MlTsType=ss7(6).