What Is a Make Whole Call?

Multi-party calling is a multi-party online voice call implemented by various means. It can realize real-time online communication between multiple parties and in different places. It is mainly used for business talks, and typical implementation methods such as conference calls.

Chinese name: Multi-party call

Foreign name: MPTY

Multi-party call background

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 a call. However, for scenarios where more than two users need to make a call, MPTY (MultiParty, multiparty Call) business ^[1] .

In real life, we often encounter scenarios where multiple people meet to discuss problems, and applying this scenario to a wireless mobile communication network is a multi-party call service. It allows more than two participants to perform real-time Communicate and talk with each other, that is, at any moment, everyone can hear the speech of all other users in the multi-party call ^[1] .

Multiparty call definition

Multi-party call is a multi-party online voice call through various means. It can realize multi-party, remote real-time online communication. It is mainly used in business meetings, and the typical implementation method is a conference call. In addition, with the rise of the mobile Internet, more and more new ways have begun to emerge, making our work and life more convenient.

Multi-party call business process

Below we explain the process of establishing a multiparty call ^[1] .

First, a multi-party call service requires a chairperson, and the user must sign up for a multi-party call service in the network in order to have the right to initiate a multi-party call.

Second, the process of initiating a multi-party call is as follows: Chairman user A first calls participant user B, and user B connects the call to form a typical two-person call. After that, user A initiates the call holding B user through the terminal menu. Request, at this time, user B will hear a piece of background music, and the call with user A is temporarily disconnected. The user on the chair side A immediately calls the other participant C user. The user initiates a service request to establish a multiparty call. At this time, the background music heard by user B will be canceled. A, B, and C will join the multiparty call. Each of them can hear the voice of the other two. The process of establishing other four-party calls and five-party calls is similar.

Finally, the multi-party call release process, that is, different users hang up the call is different. When a participant hangs up the call, for example, user B hangs up, he only leaves the multi-party call himself, and the call between the chairman A and participant C is not affected; if the user A hangs up the call, , It means that the entire multi-party call is over, and B and C cannot continue the call.

Figure 2 The process of establishing a three-party call by the chairman ^[2]

Therefore, the establishment and disconnection of a multi-party call is controlled by the chairman who signs the service. He can invite and join new users at any time during the call, and can also clear the designated party in the current multi-party call separately and participate The user of a multi-party call can also be a remote number. Such a conference call has the advantages of fast connection, no time, geographical restrictions, and low cost. It is a new mode of using a network resource as a carrier to hold a conference.

The number of participants in the entire network that can access at most one multi-party call is determined by many factors such as the operator, international standard protocols, and business implementation models.

The service description and flow details related to multi-party call in mobile network are described in 3GPP protocols TS 22.084, TS 23.084 and TS 24.084. If you are interested, you can refer to it.

-- Typical multi-party call service-conference call

The so-called telephone conference is, in colloquial terms, a new conference mode that uses a telephone as a tool and a telephone line as a carrier to meet. Compared with traditional conferences, it has the characteristics of fast conference scheduling, no time and geographical restrictions, and low cost. Compared with the traditional point-to-point phone service, from a functional point of view, breaking the call can only be limited to the limit of 2 parties, which can meet more than 3 parties (up to 4,000 parties according to the products of different providers). , The information is more real, and the scope is wider. Limited by tariffs are mostly used in daily work of enterprises ^[1] .

Multi-party call operator

China Telecom

118116 Multi-party call ^[2] is a new type of telecommunication voice call service. It breaks through the traditional "one-to-one" call mode and innovatively implements the "many-to-many" simultaneous call mode. It is set up for telephone users distributed in different places. Create a virtual "voice chat room" that transcends geographical restrictions, work negotiation, brainstorming, and inspiration at the touch of a button. A phone with multiple partners quickly establishes a virtual conference room to negotiate affairs and win thousands of miles!

How many companies are involved in a project at the same time? Multi-party calling easily solves this problem, and a call can be used to hold a conference at any time.

I ca nt go home this year during the Spring Festival. The family members all spend the New Year in their hometown, so they are lonely? Saying hello to all family members through multi-party calling is as easy as at home.

Several friends are abroad and can't contact them at the same time? Multi-party calls make it easy to resolve regional problems, and a phone call is like chatting face to face!

Through multi-party calls ^[2] , not only can Global Connect be used to participate in multi-party conferences, but customers outside of Global Connect can also be called to participate in remote conference calls (including national fixed-line telephones).

Multi-party call China Mobile

China Mobile provides a multi-party call service for global communications. Customers can use their multi-party call system platform to invite friends and colleagues to talk on the phone anytime, anywhere, and realize remote conference calls.

Multi-party call rates

(1) Moderator

Charge voice communication fee : voice communication fee = basic communication fee + multi-party communication fee

1. Basic communication fee

The communication fee generated by the moderator's access to the system platform is calculated from the time the moderator connects to the system: the actual meeting time × the corresponding basic communication rate;

2. Multi-party communication fee

The multi-party communication fee charged to the host = (time for each participant to access the conference × corresponding multi-party call rate). The multiparty communication fee is calculated from the time each participant joins the conference.

(Two) participants

Charges are in accordance with normal communication standards, and the time is calculated based on the actual meeting time. No multi-party communication fee is required. If the customer accesses the conference through the system outbound call, the customer will be charged according to the standard of the China Mobile Phone where the customer answers the home. Whether long-distance charges need to be paid depends on whether the customer participates in the conference at the home location. If long-distance charges are not charged at the home location, long-distance charges are charged if roaming.