What is Call Waiting?

When the user's phone is in conversation and a third user calls in, one party can keep the function of talking with the other party. If user A with this function is in a call with user B, if two users call in, the earphones of user A and user B will hear a waiting tone and user C will hear a ringback tone. The user can have the following three options: The user C is refused to call in without any operation. After a certain period of time, the connection between C and A is interrupted, the "waiting tone" disappears, and the "ringback tone" becomes "busy tone"; Keep the original call user B, and talk to the incoming user C, and can talk to users B and C in turn; End the call with user B, and change the call with user ^[1] .

The basic call service of the mobile communication network is a process in which the calling user enters the phone number of the called user and the two parties enter the call. The CW (Call Waiting) service allows us to receive new incoming calls during the call Receive reminders when calling to avoid missing calls from important people ^[2]

A typical call waiting service process is as follows:

First, called user B needs to sign a call waiting service in the network ^[2]

The realization of the calling user identification service is applicable to digital program-controlled switches and telephones with the function of displaying the calling user identification information, and terminal equipment attached to the telephone with the function of displaying the calling user identification ^[3]

Opened business hall business

Most cards have already opened this service by default. Shenzhouxing and other individual cards need to open the business to the business hall by themselves ^[3]

1. When you have a call with A, and another call comes from B, you will hear the "beep, beep ..." call notification tone. You can use the mobile phone keys to implement two calls in AB. Free switching between.

2. When you have a call with A, you can make another call and switch between the two AB calls freely through the key operation of the mobile phone. ^[3]

1. Find and enable "Call Waiting" on the phone menu ^[3]

If you have the Call Waiting feature on the EarthLink phone line, then when you are online, if someone calls you, your connection to the Internet will be lost. But Call waiting can be temporarily closed so that the connection will not be disconnected. To do this, you need to add a prefix to the EarthLink phone number dialed by your modem ^[4]

I. Call waiting must be enabled before using multi-party calling, that is, call waiting is the basis of multi-party calling. ^[3]

1. How to use call waiting?

A: When you are in a call with one party, you can connect or dial the second call again without interrupting the connection with the first call. You can switch between the two calls freely through key operation. When you are talking with A, there is an incoming call from B, you will hear the beep, mumble call-in notification tone. You can switch between the calls of A and B freely through the key operation of the mobile phone. ^[3]

This function is controlled by the network workspace and connected to the call waiting function, which can produce several different results ^[5] .

(1) If there is a call without call waiting:

If you press the Send key, a valid call will be put on hold, and Holding will be displayed, indicating a hold request. When this process is complete, Call Holding is displayed.

If you press the end key, the active call will end and the phone can receive a new call ^[5] .

(2) If a call is active and there is a call waiting: Press the send key, the active call will be held, and Holding is displayed, indicating that the hold request is being performed. When the call has been held, Accepting is displayed, indicating that the waiting call has been connected. When the process is over, Call Holding is displayed.

If you press the end key, Please Wait will be displayed when the valid call ends, indicating that the valid call has ended, and Accepting will be displayed, indicating that the waiting call is being connected ^[5] .

(3) If a call is valid and there is a held call: Press the Send key, the held call becomes a valid call, and when the previous valid call is held, Switching is displayed. When the process is over, Call holding is displayed.

If you press the end key, the active call is ended, and the current held call becomes an active call ^[5] .

(4) If a call is on hold and there is no call waiting: Press the Send key. When the held call becomes a valid call, the display will change from Call Holding to Connecting. ^5] .

(5) If a call is on hold and there is a call waiting: Press the Send key, Accepting is displayed, indicating that the waiting call is being connected, and the current held call will continue on hold. When this process is complete, Call holding is displayed.

If you press the end key, when the held call ends, it displays Please wait call is over, and Accepting is displayed, indicating that the waiting call is connecting ^[5] .