How to handle Guangzhou calling card online?

Search China Mobile official website-Click on the package, nickname-Choose your own city-Click on Buy Now.

Telephone cards are SIM cards, also known as subscriber identity cards and smart cards. GSM digital mobile phone can only use this card. Phone cards can store short message data and phone numbers, and can be used to identify customers in GSM network. When talking, the voice information of customers uses SIM card, which completely prevents parallel lines and phones from being eavesdropped.

Billing situation:

200 card is a valuable calling card, and the amount on the card decreases with the accumulation of call time. The cost of 200 service is included in the account number of the calling card, not in the phone used by the user, but only in the long-distance call.

If the cardholder wants to know the usage of telephone charges on the calling card, he can check the remaining amount at any time. The method is as follows: dial 200 when listening to the dial tone; After listening to the prompt, dial language+account number+password; Dial "1"after hearing the prompt tone; At this time, you can know the balance of the phone bill from the prompt tone.

The use of 200 cards is limited by the amount on the card. When the face value of the card is used up, you can't make any more calls. In order to remind the user to know and master the status of the deposit amount in the card in time, when the available amount on the card is about to reach the prescribed minimum limit, the phone will give the user a prompt.

For example, during a call, when the remaining amount on the card is only enough for the user to talk 1 minute, the user will hear a recorded notice: "Sorry, you can talk for another minute", reminding the user to hurry up and talk.

When a user uses a telephone calling card to make a long-distance call, it is obviously inconvenient to input the account number and password every time if the called user is talking with others and needs to call another user, or if the user needs to call again after a call, or if the user gives up and needs to redial during dialing.

Actually, there's no need to do this. When a cardholder makes multiple calls, he only needs to dial his account number and password once, and then press the "#" key, without hanging up.