# initByCaller(Object req)

This interface is asynchronous and returns Promise Object.

Initiate a call and get the calling room number. When you call this interface, you create VoIP Room, and push an answer reminder to the receiving party.

It is recommended to read firstIntroduction to Interface。

# parameter

# Object req

# Return value

For historical reasons, a failed call to this interface may throw an exception (usually a parameter error), or it may return isSuccess: false(Usually a backstage error).

After the interface has successfully returned, you still need to use the isSuccess Field to determine whether the call was ultimately successful.

# Object

When the interface call succeeds, it returns the following

When the call fails, the interface returns the following:

# about businessType

different businessType The corresponding part of the parameters have different meanings, please refer to the corresponding business documents for the specific way to obtain the parameters.

• Before initiating a call, you need to make a call in advance openId The corresponding user is authorized in the Mini Program of the WeChat client, please seeAuthorization document
• to import id for equipment SN When, name That will force the use of user authorizationdeviceName+modelId Corresponding Equipment Model, does not use the developer's incoming name。
• This interface businessType=2 Android only WMPF, Call Linux Equipment please use callDevice。
• This interface businessType=2 Not support License Billing, phone WeChat call Android WMPF Suggested Use callWMPF。

# sample code

const wmpfVoip = requirePlugin('wmpf-voip' ).default

try {
  const { isSuccess } = await wmpfVoip.initByCaller({
    caller: {
      id: 'Dialing party Id',
      name: "Calling party name,"
    },
    listener: {
      id: 'the receiver Id',
      name: The name of the receiver,
    },
    roomType: 'video',
    businessType: 1,
    voipToken:  'xxxx*****xxxx',
    miniprogramState: 'developer', // The development phase recommends using the development version
  })

  if (isSuccess /* && Currently not in plugin page */) {
    wx.redirectTo({
      url: wmpfVoip.CALL_PAGE_PATH,
    })
  } else {
    wx.showToast({
      title: Call failure,
      icon: 'error',
    })
  }
} catch (e) {
  wx.showToast({
    title: Call failure,
    icon: 'error',
  })
}