BSNL sim SMS outgoing error in iPhone 15 Plus

Please see the pic below. I experience SMS service disruption today on BSNL SIM, repeat TODAY. Wait for a day.

The SIM Voice Call/SMS/Data plan that you have opted with BSNL SIM may not have Outgoing SMS Services.

• You need to have an SMS/MMS plan enabled by your carrier for the SIM/eSIM that you use on your device. Apple Inc does not provide SMS/MMS services.

in iphone 12, i am unable to sent sms , you can make a call , if you are in Ghaziabad you have to choose dolphin network, customer care never helped,

in Ghaziabad no 4g network for iphone.

Sir had same problem.

Did it resolve for you? Called apple vuatomercare, they told bsnl wont support imessage.

I am out of India and in roaming now.

Please call bsnl customercare and complaim them

i have the same issue. The bsnl sim works well in android. When put in iPhone I am not able to send sms.

Not able to send sms via bsnl sim in iphone have tried multiple way but all failed pls help & revert asap

Tell me which sms plan are required in iphone for send sms

waiting for update....