Hie managed to sort out my signalling issues any ideas on the MTP3 error below ? [Sep 11 13:57:56] ERROR[19040]: chan_zap.c:8466 zt_ss7_error: Received MSU with network indicator of 2, but we are 3 [Sep 11 13:57:56] ERROR[19040]: chan_zap.c:8466 zt_ss7_error: Received error from mtp3 layer: -1 [Sep 11 13:58:10] ERROR[19040]: chan_zap.c:8466 zt_ss7_error: Received MSU with network indicator of 2, but we are 3 [Sep 11 13:58:10] ERROR[19040]: chan_zap.c:8466 zt_ss7_error: Received error from mtp3 layer: -1 [Sep 11 13:58:22] ERROR[19040]: chan_zap.c:8466 zt_ss7_error: Received MSU with network indicator of 2, but we are 3 [Sep 11 13:58:22] ERROR[19040]: chan_zap.c:8466 zt_ss7_error: Received error from mtp3 layer: -1 my NI = national at present Any ideas thanks