Hollow blocks
Snl landline not working past one month

My bsnl landline no;04324-286655 in karur pavitram exchange. Past one year workig in one or two days monthly. my phone is valuable one the buissness. Complaints tothe officer not immmetiately attend. Inthe switcwation phone not necessary of our buissnes. continue the fault I will surrender the phone, Please necessary action take solveing proplem. Thanking you.