Ichi chishandiso chinopa 1-4* E1 interface , Standard 2 waya runhare seinjiniya kurongeka-waya (optional).Inochinjika zvikuru.Iine alarm function.Basa racho rakavimbika, rakagadzikana, uye rakaderera kushandiswa kwesimba, kubatanidzwa kwepamusoro, hukuru huduku.