Earlier you have seen the airtel's new unlimited calling pack to call national wide for a month. you can read more on Airtel new unlimited calling pack to compete jio here. Now idea also launches new similar unlimited voice call pack with 4g data balance with a 28 days validity. The new trend is bucket pack with both unlimited calls and 4g data.
There mainly 2 bucket packs with 28-days validity, offering free voice calls nationally bundled with 300 MB and 1 GB of 4G data respectively for prepaid customers subscribing to its Rs 148 and Rs 348 packs.These offers have close similarities with the airtel's unlimited voice call pack.
The plan 148 can only call to the same network calls. Ie, idea can call only idea customers and similar case for Airtel customers for 145 rupees plan will allow Airtel users to call Airtel users in India. But for higher pack you can make std calls to any network for 28 days.
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Compare to Reliance jio offers there are similar plans which you can get unlimited calls to any network in India for just 149 rupees pack and also 300mb 4g data. And on selecting the 299 pack will gives you 4gb of 4data and unlimited calls for free.