I have using jio since last October . that time jio is facing minor calling issue . but now jio is far better then other service provider. not call quality issue now a days in fact call quality is far batter than other service provider. its HD voice call no other service provider has no comparability till now. I am living in south kolkata area here in speed test result always above 60 mbps. my pick speed was 120 mpbs till now. at the same time airtel vodafone speedtest result was near 8 to 15 mbps. network also very week . but jio network is always full . I recently travel very remote area in WB . I am surprised that in those area jio signal is full with no calling issue . only net speed near about 10 mbps. no signal airtel vodafone and idea 4g only 2g though signal is not full . I have also tested speed test in different part of kolkata . in salt lake internet speed average 100 mbps at day . in central kolkata also good. I have also tested north kolkata result is moderate . yes some place speed is near 1 to 5 mpbs though its batter than other service providers.i am also surprised that in metro under ground jio tower is full watched full hd video with out buffering .i traveled howra to khararpur I saw jio network is full and good through out the line but airtel vodafone 2 g signal is fluctuating through out . I daily talk with friends in conferencing(5 persons) from different part from india using jio . I have not facing any issue . voice quality is loud crystal clear HD. now a days I am facing calling issue with airtel vodafone and idea . many of my friends and relatives also facing.
why jio is batter that other service provider?
jio is all IP data network. its supports tri band LTE true 4g with volte
850, 1800 and 2300 band 5, 3 40, TDD and FDD LTE combined( airtel only band 40 support, vodafone and idea only band 3 support those are not true 4g network) jio is support LTE advance with tri band CA(carrier aggregation with MIMO) only high end smart phone support LTE+(downoload is 10 times faster in LTE+ network) . jio is already adequate this technology. my lg g6 supprted LTE advance thats why its shows LTE+. just like in 3g H and H+ before but not in other providers have LTE advance
for tri band CA signal will be strong and data transfer is fast.
(for real example in your house water is flowing trough 3 pipe line if one line close water will flow others two but others only using single pipe line in water flowing is through single line if its blocked then water will block . here water is compare with data and pipe line line is compare with 4g frequency channel band so here jio is first case scenario and others in second case .so we can see jio is far batter than others data will flow in every channels thats why in weak signal net is connected but in other providers in weak 4g signal net connection terminated . signal will fall back back to 2g, 3g)
jio also support HD native video calling from your phone phone dialer(not all phone is supported . samsung, xioami, sony lg, lyf supported you can check jio website in supported video calling page). you can video calling with out internet.
Best things in jio is its all premium applications, like jio tv, jio music jio cloud all apps
Jio is also support RCS(Rich communication service) from jio4g apps.
most I liked is jiotv is supported HD channels above 400+ channels with no problems.
what is the advantage in jio?
its supported volte, vilte(video over LTE), vowifi, wifi hotspot
for volte call will be HD. you can hear loud and clear if you calling from very crowed place
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for vilte you can video calling and wifi calling(you can call through your home wifi)
many places in kolkata and cities in india their jio wifi hotspot . you can connect net from you jio number . in jadavpur 8b bus stand jio wifi speed about 7 to 15 mbps
calling time is very fast if you call someone with volte its take only 0.5 sec to connect . not case in other service providers sometime their is beep before connecting and take time
for using volte smart phone battery life will stay remain good because there is no network switches like other service providers using CSFB circuit switch fall back method(OLD technology), like airtel vodafone and idea in 4g network when you call or text 4g tower back to 2g and 3g . 4g is only use for internet . for this process smart phone battery will down.
another advantage in jio their is no disruption in network connectivity if you are calling and surfing net simultaneously in 4g connectivity suppose you are watching full HD video using wifi hotspot and simultaneously calling from your number . but not in case in other providers network will down will terminate internet.
last thing is jio data plan . not calling charges in roming also. free SMS. free caller tune free miss call alert to client and receiver end
VERDICT:
jio network is premium till now from other service providers. now I have not facing any issue in calling in fact great HD caliing . voice call quality might disturb if you out of network . yes some places network speed is very low due to high traffic. yes network speed varies from area to area so same in other network also.
you can use as jio sim primary sim card card if you want first you have to check your area for network coverage . I hope metro city like kolkata not a problem . jio is increasing tower day by day. if have tower problem in your area call customer care and request tor tower they will install. yes jio customer care is very good proficient not connecting issue with customer care . but not in case in airtel, vodafone, idea. this is main part for using any telecom service providers if customer care service is not good and proficient we might face problem . jio customer care solved my few network related issue before and also boost network signal few ares for my request. I am very happy to say that.
you can check and track your jio account from my jio apps including calling statement, data balance check, offer, recharge, service request and everything its so much premium and unmatchable with other exiting providers.
last few things to remember for best result you have to use volte handset and check handset tri 4g band is supported nor not(band 3, 5 40). check your area coverage, always roming on in your handset . use jio in 1st sim card slot. remember . jio is only 4g network if switch data network to alternative sim then jio tower will be gone. that is no necessary jio is high speed 4g in low price. many of my relatives, frnds and colleagues using jio sim card as a primary sim card . they are not facing a single problem with jio services for last 3 or 4 months. jio network is stable day by day. and quality of service in other telecom providers getting worst day by day as they are conclave with jios plan.
so I am strongly recommend to you you can use as a primary sim and you should be.for its advance technologies, facilities, services and tariff plans .for testing I am advice to other consumer if you using dual sim phone take new jio sim using for few months compare service to others in your area if you satisfied then port your existing no to a jio no. if you use 3g or 4g phone( not supported volte) . use jio4g apps and tesing
now a days you can smoothly call from jio4gvoice apps.
last I have attached few speed test result on jio 4g. I have tested many cities including varies part in kolkata and remote village areas . I have compared wirh airtel 4g, vodafone 4g, idea 4g(west bengal).
my device was XIAOMI, LG, SAMSUNG, LYF, motorola, lenovo and others
(remember I am not taking sides or biased to any company . I gave my honest review after using jio last 11 months.)
also note if you are using non volte handset you have to use jio4gvoice calling app and mobile data have on always in that case calling issue you might face if you are out of data or net speed is slow its varies area to area . but in case of volte hanset you dont have to on mobile data always for calling . with out mobile data you can experienced great HD call from native phone dialer with out any issue .
jio have crossed 169 milion customer and improving services day by day within one year