Added parsing arfcn's from cell description in SIT1.
diff --git a/include/grgsm/misc_utils/extract_system_info.h b/include/grgsm/misc_utils/extract_system_info.h
index d449cce..a05be18 100644
--- a/include/grgsm/misc_utils/extract_system_info.h
+++ b/include/grgsm/misc_utils/extract_system_info.h
@@ -57,6 +57,7 @@
virtual std::vector<int> get_mcc() = 0;
virtual std::vector<int> get_mnc() = 0;
virtual std::vector<int> get_ccch_conf() = 0;
+ virtual std::vector<int> get_cell_arfcns(int chan_id) = 0;
virtual std::vector<int> get_neighbours(int chan_id) = 0;
virtual void reset() = 0;
};