How to calculate the telephone messages in Bayuquan in 2005?

Inquiries about telephone short messages in Bayuquan in 2005 are mostly based on the length of calls or the number of short messages or the types of calls or short messages.

1. Call duration or number of short messages: Call duration or number of short messages is the basis for calculating the cost of short messages. The longer the call or the number of text messages, the higher the cost.

2. Call type or SMS type: Call type or SMS type will also affect the cost calculation. For example, different types of calls (such as domestic long-distance calls, international long-distance calls and local calls) are charged differently, while short messages are usually charged by project.