Hardware environment

Processor: Intel Core i3 CPU or higher

Hard disk: 32G Hard disk or higher

Memory: 2GB RAM or higher

Software environment

Ubuntu 18.04+ / Debian 9+

Network environment

1.3.1. IP and bandwidth requirements

IP address: if all the calling device is under local network, the voice intercom server doesn’t need a public network IP, otherwise it needs a public network IP address.

Bandwidth: According to the numbers of simultaneous calling users, the bandwidth requirements of different user quantity as below:

Numbers of simultaneous user	Bandwidth requirements（Mbps）
10	7
20	30
30	70

Ways of calculation：64kbps×(The square of the user quantity – user quantity)/0.8

Note: Considering the hardware and maintenance costs of the server, as well as subsequent updating the version of cloud platform, it is recommended to lease the server from the cloud server provider, such as Alibaba Cloud, Tencent Cloud, Huawei Cloud, etc.

1.3.2. Port requirement

The voice intercom device need establish calling by voice intercom server port, so it is necessary to open all the corresponding ports.

Below port needs to be open:

TCP port：443 and 81

UDP port：16000-17000