What is a "local" SP SMS service? What is the letter service of the whole network Unicom?

1, "Unicom is in the letter" SMS service is a subscription and on-demand service based on SMS platform launched by China Unicom for the whole network of mobile products. It is divided into local business and national business. The main services provided include: information, personal information management, trading, entertainment, industry applications and location-based services. SP is short for service provider.

2. Unicom's convincing tariff consists of communication fee and information service fee.

3. Service types of joint communication services: online subscription and on-demand service; Subscription and on-demand of mobile phones.