Hello, everyone!
All voice users of the device can have the same number. The device supports the line hunting feature in the SIP protocol. After all, users are added to one hunting group and the hunting group account is configured, all users can have the same number. For details, see the feature guide in the product documentation.
Feature Guide: http://support.huawei.com/hedex/hdx.do?docid=EDOC1000171625&id=feature_3577&text=Line%252520Hunting&lang=en
Configuratation Guide: http://support.huawei.com/hedex/hdx.do?docid=EDOC1000171625&id=cfg_cli_3134&text=%252528Optional%252529%252520Configuring%252520Line%252520Hunting&lang=en
Thanks.