Hi all , In ofono call-forwarding use cases , i am trying to set "VoiceNoReplyTimeout" property which is of type uint16 . below is the piece of code uint time_out=15; GValue val=G_VALUE_INIT; g_value_init(&val,G_TYPE_UINT); GError *error=NULL; g_value_set_uint(&val,time_out); if(!dbus_g_proxy_call (proxy, "SetProperty", &error, G_TYPE_STRING,"VoiceNoReplyTimeout", G_TYPE_VALUE,&val, G_TYPE_INVALID, G_TYPE_INVALID)) { g_print("failed\n %s ",error->message); } if i execute the above piece of code i am getting error ->"Invalid arguments in method call" i tried to look into the ofono soruce code , in that i tried to get the data types what it is expecting , and i got with numbers 117 and 113 g_print("\n arg type %d %d \n" ,dbus_message_iter_get_arg_type(&var),DBUS_TYPE_UINT16) when i checked the number references in DBus specification i found UINT16 113 (ASCII 'q') how to add an unint16 value to a GValue ?