Who has used Yantai Mobile to make unlimited calls? Is there a time limit for this card? Can I use it indefinitely?

Yantai Mobile Unlimited Call: * * is divided into two types (with or without cell restrictions).

The first type: a county or city is limited to a community. The monthly function fee for 20 yuan is full-time access in 3 yuan, color ring tones in 3 yuan and caller ID in 3 yuan. It seems that some cards can't cancel these services. It's unlimited free to call Yantai mobile phone in the community, and Unicom Telecom is 0. 12 yuan/minute, and the long distance is 0.29 yuan/minute.

The second type: within the scope of Yantai City, there is no community restriction. Every month, 20 yuan makes free unlimited calls to local mobile phones in Yantai area (including county-level cities), and the caller ID is displayed for one day 10 cent. 50 yuan (or 100 yuan) in the card is given to 60 yuan, that is, it is given to 5 yuan every month 12 months. Full-time communication service in 3 yuan needs to be opened in the first year, and it can be cancelled after one year. Remember to cancel yourself. Otherwise, 3 yuan has been deducted, and some have not had full-time service. Call Unicom Telecom 0. 12 yuan/min, and the long distance is 0.29 yuan/min. Local calls are free and roaming charges are standard. This kind of card is the earliest batch of dozens, but now it seems difficult to buy, and the price is a bit expensive.