How to send Iranian short messages with domestic numbers?

Methods of sending Iranian short messages from domestic numbers:

1. Method of sending international short messages by mobile phone: After editing the content of short messages, enter the international prefix, country code and customer number at the sending number to send international short messages. The content of short messages should be expressed in Pinyin or English. Fee supplement: mobile, 1 yuan. Unicom, a 0.8 yuan. Telecom, one in 0.8 yuan.

2. It can be realized by third-party software. The specific tutorial is as follows: download whatsapp software and open whatsapp software. Enter the phone number to register. After receiving the SMS verification code, press enter to complete the registration. Choose to start sending information like normal SMS, and edit and send it, which is much cheaper than normal international SMS charges.