SIM Change, getting a duplicate SIM card for your existing mobile number is not a big deal now. But, after exchanging or upgrading the SIM card, you may not receive any SMS on your new SIM card. Many users are used to logging the complaint with customer care regarding this.
But it is not an issue with your operator such as Airtel, Vi (Vodafone Idea), etc. As per TRAI’s rule, any duplicate will not receive any SMS for 24 hours from the time of activation. This will happen for BSNL users in some cases if upgrading the current 2G or 3G SIM card to BSNL 4G SIM.
Incoming SMS get blocked after SIM change
The new rule says that any duplicate SIM issued will not receive any SMS on that particular Number for the next 24 hours from the time of activation. However, the outgoing SMS will work like before. You will also receive calls and can make outgoing calls, data, etc. The only issue is with the incoming SMS. It includes all the categories such as personal SMS, OTPs, and other promotional SMSs.
How to Fix the Issue of Not receiving SMS on your Number
First of all, it has considered a security feature and not an issue. Hence, the resolution is automatic. The problem gets resolved automatically after 24hrs, and you will start receiving SMS after that. For this, no need to contact or log a complaint with customer care. Just wait for one day, and things will get sorted automatically.
Reason For Blocking Incoming SMS after Upgrading the SIM
As per the new rule, the SIM card of any operator, whether of Airtel, Vi (Vodafone Idea), etc., will hold a temporary ban of Incoming SMS for 24 hours. It has been implemented to ensure the safety of the user. Several cases in which SIM fraud has been reported resulted in the loss of money from the Bank account, etc.
Fraud action takes place in which thieves and criminals may take a duplicate SIM of users. The original SIM user will be unaware of this. Once a duplicate SIM card is issued, the original SIM with the real person will get automatically disconnected. Further, all the calls and SMS will be received on the duplicate SIM card with the criminals. They can use this to receive OTP from banks to steal money from the bank account of the SIM owner. Since the Number gets disconnected during this time, the user will not get any information about this.
So, no such kind of cyber fraud activities can take place during these times. To avoid this type of fraud activity, temporary blocking is implemented if you take a duplicate SIM. In the meantime, the original SIM owner can report the issue with its operators. So that the duplicate SIM can be deactivated if the real owner did not take the duplicate SIM.
Drawback of the SMS Blocking with the Duplicate SIM
The feature is to ensure the customer’s safety, and however, for the original user, it may cause some issues. During the 24 hours, the user will not receive any SMS, including regular SMS, OTP, etc. If you are frequently using a bank account for online transactions, then this might cause a problem. You will not receive any OTP from the bank to make any transaction during these times. Also, if you are about to receive any vital SMS, then also you may miss them.
Another important thing is that you cannot register for any applications such as WhatsApp, Viber, Duo, etc., using the OTP message during this time. Alternatively, WhatsApp and some other apps provide OTP over the call that can be used to solve this issue. But for all others that need OTP over SMS, you need to wait for 24 hours.
Note: As a result of some network outages and other technical issues, some users report that they cannot receive the SMS even after the 24hrs period. If the same happens to you, then we recommend contacting customer care immediately and reporting the issue.
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