What should I add before PHS number when sending SMS to PHS?

The method of sending short messages between PHS and mobile phone;

PHS → Mobile Phone Enter the mobile phone number directly (add 0 in front of foreign mobile phones).

Mobile phone → PHS 106+ area code+the other PHS number.

Cost:

After the exchange of short messages, the current charging standard for sending short messages by the three-party external network remains unchanged. The charging standard for sending short messages on PHS intranet and intranet is 0.08 yuan/message, while the charging standard for sending short messages from mobile phones to PHS is 0. 15 yuan/message, and Unicom expects it to be 0. 1 yuan/message.

At present, all provinces are nervously testing SMS interoperability. Although some areas have been able to exchange short messages, the system is still unstable and the success rate of short message exchange is not high.