freetdm: changing call reference to generic header; removing location area code

libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_handle.c

@@ -223,8 +223,9 @@ ftdm_status_t handle_con_ind(uint32_t suInstId, uint32_t spInstId, uint32_t circ
 			sngss7_add_var(sngss7_info, "ss7_opc", var);
 			
 			if (siConEvnt->callRef.callId.pres) {
-				sprintf(var, "%u", (unsigned int)siConEvnt->callRef.callId.val);
-				sngss7_add_var(sngss7_info, "ss7_crn", var);
+				ftdmchan->caller_data.call_reference = (unsigned int)siConEvnt->callRef.callId.val;
+			} else {
+				ftdmchan->caller_data.call_reference = 0;
 			}
 			
 			if (sngss7_info->circuit->transparent_iam) {

libs/freetdm/src/include/freetdm.h

@@ -362,6 +362,7 @@ typedef struct ftdm_caller_data {
 	/* user information layer 1 protocol */
 	ftdm_user_layer1_prot_t bearer_layer1;
 	ftdm_calling_party_category_t cpc; /*!< Calling party category */
+	uint32_t call_reference;
 
 	ftdm_channel_t *fchan; /*!< FreeTDM channel associated (can be NULL) */