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For an industrial environment with an average load of ap.100 thousand calls up to 400 thousand calls per day (250-350 simultaneous calls with call recording) and about 100 thousand chats per day, it is necessary to prepare 3 virtual machines, which are described in paragraphs 1-3 of the table below. You just need to install the operating system and leave Internet access to be able to download and install all additional software. After installation is complete, Internet access from virtual machines can be disabled. Access to the servers is provided to developers via SSH with the root user permissions for the time which is needed for the applications installation and testing. Virtual machines 1-3 should be able to operate on the same VLAN without filtering traffic by ports (allow all).
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Object | Software | Resources (min) | Connectivity | Description |
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1. Webitel Server Telephony application server | Debian 10 12 Linux 64bit - — basic server installation with SSH connection; Additionally, we will install: OpenSIPS 3.4; rtpengine; nginx; SSL; webitel |
| in-out: 80/tcp, 443/tcp, 5060/tcp, 5060/udp in-out: 10000-50000/udp | Telephony server. SSL certificates with a trusted CA are required to provide a secure connection via HTTPS protocol and telephony in a browser. |
2. Database / Cache Server / Storage Server | Debian 10 12 Linux 64bit - — basic server installation with SSH connection; Additionally, we will install: Linux; PostgreSQL 1215; Grafana; Consul; RabbitMQ; Webitel Storage |
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We recommend duplicating the server to configure Streaming Replica. | |
3. Media Gateway Application Server | Debian 10 12 Linux 64bit - — basic server installation with SSH connection; Additionally, we will install: FreeSWITCH 10; Webitel FlowManager; Webitel App; Webitel API GW; Storage; CallCenter; Engine; Messages |
| Voice menu server
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4. External Data Services | Interaction with external systems runs via HTTP REST (needs to be discussed). | |||
5. Team | Microsoft Windows 10 11 / Linux 64bit Google Chrome / Microsoft Edge (the latest or previous version) |
| Connection to the IS not less than 2 Mb/s per user, with delays of no more than 15-20 ms. | Employees’ workplace |
6. Hardware SIP Phone | Connection to the IS not less than 5 Mb/s per device, with delays of no more than 15-20 ms. in-out: 5060/udp, 10000-20000/udp | Hardware phone with SIP 2.0 protocol support | ||
7. PSTN | Public Switched Telephone Network is a general subscriber communication network, the access to which is provided by telephone sets, PBX, and data transmission equipment. |
Connection speed | Delay (Ping) | Jitter | Packet Loss | |
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WebRTC |
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