[Resolved]  Idea Cellular — signal problems

Address:

Hyderabad, Andhra Pradesh, 500045

Ported from airtel to idea - 10 days ago.
Pathetic mobile connectivity.
This has become a nightmare. Earlier airtel calls used to drop and clarity of speech was missing sometimes. But my phone was always accessible for my clients, friends.
Idea situation:
1) phone is always suggesting as switched off
2) poor clarity in calls. Most of the information exchanged phone is not understand by either as voice is choppy.
3) to manager a small 5 mins conversation, we have to stand in 1 place where there was a problem message exchange and complete conversation without moving an inch on mobile phone.

My only accessibility has been land phone as my sim is never accessible to external entities calling me. I had decent signal earlier and never anyone complain of phone switched off / no signal in the place of work.

Also sms's reach after 30 - 45 mins. When i asked ppl when they sent this message they say its been sometime i sent this message when we could not reach you on call. Hence requesting to call.
I am not sure how can i phone show signal but not get incoming calls.
I am sure there is definitely some solution which idea can provide for active phones to be accessible to callers. Idea please do the needful in order to help me get out of this crisis.