How to open a continuous call

1, taking Huawei's mobile phone as an example, first open the screen of the mobile phone and click the dialing option;

2. After entering the dialing interface, click the "Connect Call" option at the lower right;

3. After entering Unicom, click the option to open immediately;

4. Now, after clicking on it, there will be a notice of Unicom's telephone service, telling that Unicom's telephone charges will not be generated under networking conditions;

5. After the above operations are completed, Unicom will be opened. You can click the phone option behind the contact who also uses Unicom to make voice calls, or click the video option to make video calls.