SS7 from/to DSS1/QSIG
PROTEI ISM enables the operator to set up connection between PBXs with different signalling types (SS7 and DSS1/QSIG).
PRI converter/concentrator
PROTEI MSM converter/concentrator allows up to six small PBXs with ISDN functions to be connected to a main PBX using one of two digital PRI streams by multiplexing the PRI paths from these stations into one path.
DSS1 from/to R2
PROTEI CSM enables the operator to set up connection between PBXs using signalling types DSS1 and R2.
SS7 from/to R2
PROTEI UCM enables the operator to set up connection between PBXs using SS7 and R2 signalling.
V5 from/to DSS1 converter/concentrator
PROTEI VSM enables the operator to set up connection between PBXs using V5 and DSS1 signalling. The VSM converter allows subscriber load to be concentrated, allowing better usage of the exchange system’s subscriber volume, reduction in the length of the analogue subscriber line and corresponding improvement for users connected via 2-core analogue lines.