Fixes to support QSIG over T1

libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_cfg.c

@@ -84,6 +84,8 @@ static ftdm_status_t parse_switchtype(const char* switch_name, ftdm_span_t *span
 				signal_data->switchtype = SNGISDN_SWITCH_4ESS;
 			} else if (!strcasecmp(switch_name, "dms100")) {
 				signal_data->switchtype = SNGISDN_SWITCH_DMS100;
+			} else if (!strcasecmp(switch_name, "qsig")) {
+				signal_data->switchtype = SNGISDN_SWITCH_QSIG;
 			} else {
 				ftdm_log(FTDM_LOG_ERROR, "%s:Unsupported switchtype %s for trunktype:%s\n", span->name, switch_name, ftdm_trunk_type2str(span->trunk_type));
 				return FTDM_FAIL;

libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn_stack_cfg.c

@@ -668,6 +668,13 @@ ftdm_status_t sngisdn_stack_cfg_q931_dlsap(ftdm_span_t *span)
 	cfg.t.cfg.s.inDLSAP.maxDSrvCnt = 2;
 #endif /* ISDN_SRV */
 
+	if (signal_data->switchtype == SNGISDN_SWITCH_QSIG) {
+		cfg.t.cfg.s.inDLSAP.ackOpt = TRUE;
+		cfg.t.cfg.s.inDLSAP.intType = SYM_USER;
+		cfg.t.cfg.s.inDLSAP.clrGlr = TRUE;			/* in case of glare, clear local call */
+		cfg.t.cfg.s.inDLSAP.statEnqOpt = FALSE;
+		cfg.t.cfg.s.inDLSAP.rstOpt = FALSE;
+	} else {
 		if (signal_data->signalling == SNGISDN_SIGNALING_NET) {
 			cfg.t.cfg.s.inDLSAP.ackOpt = TRUE;
 			cfg.t.cfg.s.inDLSAP.intType = NETWORK;
@@ -687,6 +694,7 @@ ftdm_status_t sngisdn_stack_cfg_q931_dlsap(ftdm_span_t *span)
 			cfg.t.cfg.s.inDLSAP.statEnqOpt = FALSE;
 			cfg.t.cfg.s.inDLSAP.rstOpt = FALSE;
 		}
+	}
 
 	/* Override the restart options if user selected that option */
 	if (signal_data->restart_opt != SNGISDN_OPT_DEFAULT) {