pascom SOHO Server

Self Hosted only

DISCONTINUED - The pascom SOHO Server will continue to be supported but is no longer available to purchase, having been replaced by the pascom Appliance.

The pascom SOHO Server is the ideal solution for Small Office Home Offices or branch offices requiring hardware.

Useful Knowledge Vorwissen

pascom SOHO Server

pascom SOHO Server

Modify your Firewall

Many companies have no Internet access restrictions and can therefore immediately start using your pascom SOHO Server without needing to make any alterations to their Firewall.

However, should you choose to, you can specify which internet services your company network is permitted to access by opening the following ports and allowing the pascom SOHO servers access in order to ensure that your pascom phone system operates optimally:

pascom Services

Port Host Description
TCP 80/443 Access to the pascom licence server + PUSH services
TCP 25, Access to the pascom Mailserver
UDP 123 * Access to the preferred time server (NTP)
UDP 3478 * Zugriff für Video-Funktionalität

pascom Server Installation (for new / reinstallations only)

The pascom appliance is delivered with the pascom phone system server software already pre-installed. Perform the following steps only if you wish to reinstall the system!


  • USB stick with a minimum capacity of 8GB
  • Free of charge Flash Tool Rufus (only for Windows)
  • pascom Server Software ISO File

Flash the USB Stick

Aftering flashing, the USB stick must contain a FAT file system as you will need to modify the setup.json for the automatic setup. Tools such as Etcher create a Read Only ISO file system on the USB stick. As a result, modifying the setup.json is not possible, which is why you will need to use Rufus to generate the USB stick.

Connect the USB stick to your compute and start Rufus. Now select the pascom Server ISO file under , select the USB stick via and finally click the :


Preparing the Automatic Setup

As the pascom SOHO phone system server does not have a monitor connectivity option, you will need to add a file named setup.json to the USB stick and pre-allocate the file with your network settings. The system will automatically boot and configure the network settings accordingly. This ensures that you are able to continue with the web based setup as soon as the system has started.

    "device": "sda",
    "skipWelcome": true,
    "skipHostname": true,
    "skipDevice": true,
    "hostname": "pascom-server",
    "skipNetwork": true,
    "network": {
        "interface": "enp1s0",
        "mode": "static",
        "ip": "",
        "netmask": "",
        "gateway": "",
        "dns1": "" ,
		"dns2": ""

Connect the USB Stick

Now you can directly connect the prepared USB stick to the USB port on the server.

Connect the Appliance

  • Connect the network to the lefthand port of the three network socekts
  • Connect the power supply
  • The server will automatically begin the startup

First System Start

After a short time, the system will be available either under the standard IP Adreess (default as delivered) the IP Address as defined by you in the setup.json.

Start Setup Wizard

Open a browser window and go to your pascom PBX server IP address configured during the first system start. Follow the steps until you can login into the Management Interface:

Should you have rebuilt the system and booted from the USB Stick, remove the stick before the reboot. Otherwise, the initial setup process will be repeated.

After a successfull reboot, you will see the login screen:

pascom Server Management

Setup Mobile Acces via the Internet (optional)

If you want to use this feature, follow these steps now. Future changes are possible, but will result in changes for your users as aspects such as access to the server via the pascom client will change from a local IP address to a DNS name.

This step is required should you wish to use the pascom mobile client (iOS/Android) or desktop client to access the local pascom server from “on the go” i.e. outside of the network.

Phone System Setup

An additionnal assistant will help you to finish setting up your phone system and add / invite further users. Proceed as follows:

  • Via a browser window, login into the pascom server as an Admin
  • Click on the and then enter a name for your phone system
  • Follow the setup assistant instructions