skip update when val has not changed

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15924 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/sofia.c

@@ -500,11 +500,15 @@ void sofia_update_callee_id(switch_core_session_t *session, sofia_profile_t *pro
 	
 	caller_profile = switch_channel_get_caller_profile(channel);
 
-	caller_profile->callee_id_name = switch_sanitize_number(switch_core_strdup(caller_profile->pool, name));
-	caller_profile->callee_id_number = switch_sanitize_number(switch_core_strdup(caller_profile->pool, number));
+	if (!strcmp(caller_profile->callee_id_name, name) && !strcmp(caller_profile->callee_id_number, number)) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG1, "Same Callee ID \"%s\" <%s>\n", name, number);
+		send = 0;
+	} else {
+		caller_profile->callee_id_name = switch_sanitize_number(switch_core_strdup(caller_profile->pool, name));
+		caller_profile->callee_id_number = switch_sanitize_number(switch_core_strdup(caller_profile->pool, number));
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Update Callee ID to \"%s\" <%s>\n", name, number);
+	}
 
-	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Update Callee ID to \"%s\" <%s>\n", name, number);
-	
 	if (send) {
 		sofia_send_callee_id(session, NULL, NULL);
 	}