diff --git a/libs/freetdm/mod_openzap/mod_openzap.c b/libs/freetdm/mod_openzap/mod_openzap.c
index 886d14a71a..6ba5ee724e 100644
--- a/libs/freetdm/mod_openzap/mod_openzap.c
+++ b/libs/freetdm/mod_openzap/mod_openzap.c
@@ -2306,41 +2306,45 @@ static switch_status_t load_config(void)
 		for (myspan = switch_xml_child(spans, "span"); myspan; myspan = myspan->next) {
 			char *id = (char *) switch_xml_attr(myspan, "id");
 			char *name = (char *) switch_xml_attr(myspan, "name");
+			char *sigmod = (char *) switch_xml_attr(myspan, "sigmod");
 			zap_status_t zstatus = ZAP_FAIL;
 			const char *context = "default";
 			const char *dialplan = "XML";
 			uint32_t span_id = 0;
 			zap_span_t *span = NULL;
 			const char *tonegroup = NULL;
-			char *local_ip = NULL;
-			int local_port = 0;
-			char *remote_ip = NULL;
-			int remote_port = 0;
+			zap_conf_parameter_t spanparameters[30];
+			unsigned paramindex = 0;
+			
+			if (!id && !name) {
+				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "boost span requires an id or name as attribute: <span id=ozid|name=ozname>\n");
+				continue;
+			}
+			memset(spanparameters, 0, sizeof(spanparameters));
+			if (sigmod) {
+				spanparameters[paramindex].var = "sigmod";
+				spanparameters[paramindex].val = sigmod;
+				paramindex++;
+			}
 
 			for (param = switch_xml_child(myspan, "param"); param; param = param->next) {
 				char *var = (char *) switch_xml_attr_soft(param, "name");
 				char *val = (char *) switch_xml_attr_soft(param, "value");
-
+				if (sizeof(spanparameters)/sizeof(spanparameters[0]) == paramindex) {
+					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Too many parameters for boost span, ignoring any parameter after %s\n", var);
+					break;
+				}
 				if (!strcasecmp(var, "tonegroup")) {
 					tonegroup = val;
-				} else if (!strcasecmp(var, "local-ip")) {
-					local_ip = val;
-				} else if (!strcasecmp(var, "local-port")) {
-					local_port = atoi(val);
-				} else if (!strcasecmp(var, "remote-ip")) {
-					remote_ip = val;
-				} else if (!strcasecmp(var, "remote-port")) {
-					remote_port = atoi(val);
 				} else if (!strcasecmp(var, "context")) {
 					context = val;
 				} else if (!strcasecmp(var, "dialplan")) {
 					dialplan = val;
-				} 
-			}
-				
-			if (!id && !name) {
-				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "span missing required param\n");
-				continue;
+				} else {
+					spanparameters[paramindex].var = var;
+					spanparameters[paramindex].val = val;
+					paramindex++;
+				}
 			}
 
 			if (!tonegroup) {
@@ -2369,12 +2373,7 @@ static switch_status_t load_config(void)
 				span_id = span->span_id;
 			}
 
-			if (zap_configure_span("sangoma_boost", span, on_clear_channel_signal, 
-								   "local_ip", local_ip,
-								   "local_port", &local_port,
-								   "remote_ip", remote_ip,
-								   "remote_port", &remote_port,
-								   TAG_END) != ZAP_SUCCESS) {
+			if (zap_configure_span_signaling("sangoma_boost", span, on_clear_channel_signal, spanparameters) != ZAP_SUCCESS) {
 				zap_log(ZAP_LOG_ERROR, "Error starting OpenZAP span %d error: %s\n", span_id, span->last_error);
 				continue;
 			}
diff --git a/libs/freetdm/src/include/openzap.h b/libs/freetdm/src/include/openzap.h
index 4024b40d31..7c5280e0ee 100644
--- a/libs/freetdm/src/include/openzap.h
+++ b/libs/freetdm/src/include/openzap.h
@@ -737,6 +737,7 @@ OZ_DECLARE(zap_status_t) zap_channel_init(zap_channel_t *zchan);
 OZ_DECLARE(int) zap_load_modules(void);
 OZ_DECLARE(zap_status_t) zap_unload_modules(void);
 OZ_DECLARE(zap_status_t) zap_configure_span(const char *type, zap_span_t *span, zio_signal_cb_t sig_cb, ...);
+OZ_DECLARE(zap_status_t) zap_configure_span_signaling(const char *type, zap_span_t *span, zio_signal_cb_t sig_cb, zap_conf_parameter_t *parameters);
 OZ_DECLARE(zap_status_t) zap_span_start(zap_span_t *span);
 OZ_DECLARE(zap_status_t) zap_span_stop(zap_span_t *span);
 OZ_DECLARE(char *) zap_build_dso_path(const char *name, char *path, zap_size_t len);
diff --git a/libs/freetdm/src/include/zap_types.h b/libs/freetdm/src/include/zap_types.h
index a6736012a0..b415ecfb31 100644
--- a/libs/freetdm/src/include/zap_types.h
+++ b/libs/freetdm/src/include/zap_types.h
@@ -29,6 +29,11 @@
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Contributors: 
+ *
+ * Moises Silva <moy@sangoma.com>
+ *
  */
 
 #ifndef ZAP_TYPES_H
@@ -428,6 +433,11 @@ typedef enum zap_channel_hw_link_status {
 	ZAP_HW_LINK_CONNECTED
 } zap_channel_hw_link_status_t;
 
+typedef struct zap_conf_parameter_s {
+	const char *var;
+	const char *val;
+} zap_conf_parameter_t;
+
 typedef struct zap_channel zap_channel_t;
 typedef struct zap_event zap_event_t;
 typedef struct zap_sigmsg zap_sigmsg_t;
@@ -464,6 +474,7 @@ typedef zap_status_t (*zap_stream_handle_write_function_t) (zap_stream_handle_t
 #define ZIO_IO_UNLOAD_ARGS (void)
 #define ZIO_SIG_LOAD_ARGS (void)
 #define ZIO_SIG_CONFIGURE_ARGS (zap_span_t *span, zio_signal_cb_t sig_cb, va_list ap)
+#define ZIO_CONFIGURE_SPAN_SIGNALING_ARGS (zap_span_t *span, zio_signal_cb_t sig_cb, zap_conf_parameter_t *zap_parameters)
 #define ZIO_SIG_UNLOAD_ARGS (void)
 #define ZIO_API_ARGS (zap_stream_handle_t *stream, const char *data)
 
@@ -489,6 +500,7 @@ typedef zap_status_t (*zio_write_t) ZIO_WRITE_ARGS ;
 typedef zap_status_t (*zio_io_load_t) ZIO_IO_LOAD_ARGS ;
 typedef zap_status_t (*zio_sig_load_t) ZIO_SIG_LOAD_ARGS ;
 typedef zap_status_t (*zio_sig_configure_t) ZIO_SIG_CONFIGURE_ARGS ;
+typedef zap_status_t (*zio_configure_span_signaling_t) ZIO_CONFIGURE_SPAN_SIGNALING_ARGS ;
 typedef zap_status_t (*zio_io_unload_t) ZIO_IO_UNLOAD_ARGS ;
 typedef zap_status_t (*zio_sig_unload_t) ZIO_SIG_UNLOAD_ARGS ;
 typedef zap_status_t (*zio_api_t) ZIO_API_ARGS ;
@@ -516,14 +528,13 @@ typedef zap_status_t (*zio_api_t) ZIO_API_ARGS ;
 #define ZIO_IO_LOAD_FUNCTION(name) zap_status_t name ZIO_IO_LOAD_ARGS
 #define ZIO_SIG_LOAD_FUNCTION(name) zap_status_t name ZIO_SIG_LOAD_ARGS
 #define ZIO_SIG_CONFIGURE_FUNCTION(name) zap_status_t name ZIO_SIG_CONFIGURE_ARGS
+#define ZIO_CONFIGURE_SPAN_SIGNALING_FUNCTION(name) zap_status_t name ZIO_CONFIGURE_SPAN_SIGNALING_ARGS
 #define ZIO_IO_UNLOAD_FUNCTION(name) zap_status_t name ZIO_IO_UNLOAD_ARGS
 #define ZIO_SIG_UNLOAD_FUNCTION(name) zap_status_t name ZIO_SIG_UNLOAD_ARGS
 #define ZIO_API_FUNCTION(name) zap_status_t name ZIO_API_ARGS
 
 #include "zap_dso.h"
 
-
-
 typedef struct {
 	char name[256];
 	zio_io_load_t io_load;
@@ -533,6 +544,15 @@ typedef struct {
 	zio_sig_unload_t sig_unload;
 	zap_dso_lib_t lib;
 	char path[256];
+	/*! 
+	  \brief configure a given span signaling 
+	  \see sig_configure
+	  This is just like sig_configure but receives
+	  an array of paramters instead of va_list
+	  I'd like to deprecate sig_configure and move
+	  all modules to use sigparam_configure
+	 */
+	zio_configure_span_signaling_t configure_span_signaling;
 } zap_module_t;
 
 #ifndef __FUNCTION__
diff --git a/libs/freetdm/src/ozmod/ozmod_sangoma_boost/ozmod_sangoma_boost.c b/libs/freetdm/src/ozmod/ozmod_sangoma_boost/ozmod_sangoma_boost.c
index 5090ca7197..96be901f69 100644
--- a/libs/freetdm/src/ozmod/ozmod_sangoma_boost/ozmod_sangoma_boost.c
+++ b/libs/freetdm/src/ozmod/ozmod_sangoma_boost/ozmod_sangoma_boost.c
@@ -1566,7 +1566,7 @@ static ZIO_CHANNEL_GET_SIG_STATUS_FUNCTION(sangoma_boost_get_sig_status)
  * \param ap List of configuration variables
  * \return Success or failure
  */
-static ZIO_SIG_CONFIGURE_FUNCTION(zap_sangoma_boost_configure_span)
+static ZIO_CONFIGURE_SPAN_SIGNALING_FUNCTION(zap_sangoma_boost_configure_span)
 {
 #define FAIL_CONFIG_RETURN(retstatus) \
 		if (sangoma_boost_data) \
@@ -1577,7 +1577,6 @@ static ZIO_SIG_CONFIGURE_FUNCTION(zap_sangoma_boost_configure_span)
 			zap_mutex_unlock(g_boost_modules_mutex); \
 		if (lib) \
 			zap_dso_destroy(lib); \
-		va_end(conflist); \
 		return retstatus;
 
 	boost_sigmod_interface_t *sigmod_iface = NULL;
@@ -1585,44 +1584,27 @@ static ZIO_SIG_CONFIGURE_FUNCTION(zap_sangoma_boost_configure_span)
 	const char *local_ip = "127.0.0.65", *remote_ip = "127.0.0.66";
 	const char *sigmod = NULL;
 	int local_port = 53000, remote_port = 53000;
-	char *var = NULL, *val = NULL;
-	int *intval = NULL;
+	const char *var = NULL, *val = NULL;
 	int hash_locked = 0;
 	zap_dso_lib_t lib = NULL;
 	char path[255] = "";
 	char *err = NULL;
-	va_list conflist;
+	unsigned paramindex = 0;
 
-	/* we need to copy the list before moving with va_arg in case this configuration should be handled by a sigmod */
-	va_copy(conflist, ap); /* WARNING: must be freed before returning */
-
-	while((var = va_arg(ap, char *))) {
+	for (; zap_parameters[paramindex].var; paramindex++) {
+		var = zap_parameters[paramindex].var;
+		val = zap_parameters[paramindex].val;
 		if (!strcasecmp(var, "sigmod")) {
-			if (!(val = va_arg(ap, char *))) {
-				break;
-			}
 			sigmod = val;
 		} else if (!strcasecmp(var, "local_ip")) {
-			if (!(val = va_arg(ap, char *))) {
-				break;
-			}
 			local_ip = val;
 		} else if (!strcasecmp(var, "remote_ip")) {
-			if (!(val = va_arg(ap, char *))) {
-				break;
-			}
 			remote_ip = val;
 		} else if (!strcasecmp(var, "local_port")) {
-			if (!(intval = va_arg(ap, int *))) {
-				break;
-			}
-			local_port = *intval;
+			local_port = atoi(val);
 		} else if (!strcasecmp(var, "remote_port")) {
-			if (!(intval = va_arg(ap, int *))) {
-				break;
-			}
-			remote_port = *intval;
-		} else {
+			remote_port = atoi(val);
+		} else if (!sigmod) {
 			snprintf(span->last_error, sizeof(span->last_error), "Unknown parameter [%s]", var);
 			FAIL_CONFIG_RETURN(ZAP_FAIL);
 		}
@@ -1676,7 +1658,7 @@ static ZIO_SIG_CONFIGURE_FUNCTION(zap_sangoma_boost_configure_span)
 		}
 		zap_log(ZAP_LOG_NOTICE, "Span %s will use Sangoma Boost Signaling Module %s\n", span->name, sigmod_iface->name);
 		sangoma_boost_data->sigmod = sigmod_iface;
-		sigmod_iface->configure_span(span, conflist);
+		sigmod_iface->configure_span(span, zap_parameters);
 	} else {
 		zap_set_string(sangoma_boost_data->mcon.cfg.local_ip, local_ip);
 		sangoma_boost_data->mcon.cfg.local_port = local_port;
@@ -1693,9 +1675,6 @@ static ZIO_SIG_CONFIGURE_FUNCTION(zap_sangoma_boost_configure_span)
 	span->get_sig_status = sangoma_boost_get_sig_status;
 	span->state_map = &boost_state_map;
 	zap_set_flag_locked(span, ZAP_SPAN_SUSPENDED);
-
-	va_end(conflist);
-
 	return ZAP_SUCCESS;
 }
 
@@ -1703,12 +1682,10 @@ static ZIO_SIG_CONFIGURE_FUNCTION(zap_sangoma_boost_configure_span)
  * \brief Openzap sangoma boost signaling module definition
  */
 zap_module_t zap_module = { 
-	"sangoma_boost",
-	NULL,
-	NULL,
-	zap_sangoma_boost_init,
-	zap_sangoma_boost_configure_span,
-	zap_sangoma_boost_destroy	
+	.name = "sangoma_boost",
+	.sig_load = zap_sangoma_boost_init,
+	.sig_unload = zap_sangoma_boost_destroy,
+	.configure_span_signaling = zap_sangoma_boost_configure_span
 };
 
 /* For Emacs:
diff --git a/libs/freetdm/src/ozmod/ozmod_sangoma_boost/sangoma_boost_interface.h b/libs/freetdm/src/ozmod/ozmod_sangoma_boost/sangoma_boost_interface.h
index 06e65bb974..4d91f86a05 100644
--- a/libs/freetdm/src/ozmod/ozmod_sangoma_boost/sangoma_boost_interface.h
+++ b/libs/freetdm/src/ozmod/ozmod_sangoma_boost/sangoma_boost_interface.h
@@ -116,10 +116,10 @@ typedef zap_status_t (*boost_set_sig_status_func_t) BOOST_SET_SIG_STATUS_ARGS;
 /*! 
   \brief Configure the given span signaling
   \param span The openzap span
-  \param ap The list of configuration key,value pairs (must be null terminated)
+  \param parameters The array of configuration key,value pairs (must be null terminated)
   \return ZAP_SUCCESS or ZAP_FAIL 
  */
-#define BOOST_CONFIGURE_SPAN_ARGS (zap_span_t *span, va_list ap) 
+#define BOOST_CONFIGURE_SPAN_ARGS (zap_span_t *span, zap_conf_parameter_t *parameters) 
 typedef zap_status_t (*boost_configure_span_func_t) BOOST_CONFIGURE_SPAN_ARGS;
 #define BOOST_CONFIGURE_SPAN_FUNCTION(name) zap_status_t name BOOST_CONFIGURE_SPAN_ARGS
 
diff --git a/libs/freetdm/src/zap_io.c b/libs/freetdm/src/zap_io.c
index 941c4facc9..122397bcd2 100644
--- a/libs/freetdm/src/zap_io.c
+++ b/libs/freetdm/src/zap_io.c
@@ -2806,6 +2806,32 @@ OZ_DECLARE(zap_status_t) zap_configure_span(const char *type, zap_span_t *span,
 	return status;
 }
 
+OZ_DECLARE(zap_status_t) zap_configure_span_signaling(const char *type, zap_span_t *span, zio_signal_cb_t sig_cb, zap_conf_parameter_t *parameters) 
+{
+	zap_module_t *mod = (zap_module_t *) hashtable_search(globals.module_hash, (void *)type);
+	zap_status_t status = ZAP_FAIL;
+
+	zap_assert(type != NULL, ZAP_FAIL, "No signaling type");
+	zap_assert(span != NULL, ZAP_FAIL, "No span");
+	zap_assert(sig_cb != NULL, ZAP_FAIL, "No signaling callback");
+	zap_assert(parameters != NULL, ZAP_FAIL, "No parameters");
+
+	if (!mod) {
+		zap_load_module_assume(type);
+		if ((mod = (zap_module_t *) hashtable_search(globals.module_hash, (void *)type))) {
+			zap_log(ZAP_LOG_INFO, "auto-loaded '%s'\n", type);
+		}
+	}
+
+	if (mod && mod->configure_span_signaling) {
+		status = mod->configure_span_signaling(span, sig_cb, parameters);
+	} else {
+		zap_log(ZAP_LOG_ERROR, "can't find module '%s' or the module did not implement the signaling configuration method\n", type);
+	}
+
+	return status;
+}
+
 OZ_DECLARE(zap_status_t) zap_span_start(zap_span_t *span)
 {
 	if (span->start) {