I agree that market has been dominant by 2G users...
now lets see the facts
by END of 2015 - 3 Million 4G user
Reports says 2017 End around 50 Million 4G users, fact is Mid 2017 Jio itself have 100 Million 4G users, plus AVOID numbers
with introduction of feature 4G phones (which Jio is expected to launch). 4G base is expected to grow exponentially (it may be almost double of what article predicts by 2020)
Now coming to Voice users....it is past....with Voice becoming free(mature market already have free voice), who will stick to Voice only. next upgrade will be either to feature phones or smart phones. Many countries are now closing 2G...(Singapore already closed, Australia - largest telco have closed others have announced by Sep 2017). Even indian Telcos will have to close 2G at some point so as to utilize spectrum in efficient way. Telco wants profit. 2G only is not profitable with ARPU on the lowest side.
In terms of Coverage/Speed/Quantity ...AVOID is far better than RCOM/AIRCEL.
Not to mention about customer services which is almost non existence for RCOM
Plus not to forget the low quality of users on RCOM/AIRCEL, huge debt, reducing subscriber, increasing losses, No funds for expansion, 800Mhz of RCOM near its expiry. I dont see RCOM/AIRCEL surviving in this market
Just to give u some more inside
RCOM had 100 Million customer on Dec15, with VLR around 91%..Close to 91 Million active users
as of Dec16 RCOM is having 86Million with VLR around 85%...close to 73 Million active users(may have further reduced in Jan-Dec due to onslaught from Jio/Matching offers from AVOID)
Stock price of RCOM hovering around 33 today. which is near to its all time low(Gives u a fair bit of idea that even experts are not buying RCOM story)
RCOM most profitable users were EVDO Data card users..(they are gone now), User looking for Data have moved to Jio, for 2G only service why should one stick to RCOM?? For user with low usage 20-60Rs default rates are same across all Telco's.
No international roaming on prepaid, frequent unwanted deductions, messy vouchers(advertise something but actual benefits does not match). Check any online forum you will see people calling CHORCOM...