Why am I a telecom mobile phone, and then I sent a 10 message to other provinces, so I can't send it out, and it keeps showing that sending failed?

Your mobile phone sends a text message to another province's mobile phone number, and it can't be sent after 40 messages. It always shows that sending failed, probably because.

1 Your mobile phone sends too many text messages every day. Telecom has set your mobile phone number to harassing calls, so the number of text messages sent every day is limited.

Your mobile phone number is insufficient, so you need to pay.

The other party's mobile phone number will blacklist you.