IP-telephony in the office?

Question

Asterisk

Good afternoon.
I am a complete noob in matters of ip-telephony, so I ask the community for help. What you want:
About 10 employees with telephones, everyone can call each other by internal number, the incoming number is multichannel, some employees will call, all employees can make outgoing calls. When calling an incoming number, if all the answering employees (how to change their list quickly and easily? For example, someone on vacation?) Are busy - the usual short beeps.
What about fax? I want a classic, send / receive.
Is it possible to connect existing skylink numbers (incoming), Rostelecom's analog line to this system?
How I imagine this system so far:
1. Each employee has 2 network sockets - for a computer and for a telephone.
2. All this is going to a regular local network through unmanaged switches.
3. A PBX server (asterisk) is connected to the network
4. Incoming lines are also connected to this server (how?)
Many thanks in advance for your answers.

Answer 1

Not as an advertisement, but solely as one of the possible variants of OKTell PBX
Regardless of the chosen PBX, to connect an existing analog telephone line, you will need a board in a computer or a separate device that will be a gateway between the analog and VoIP networks. But it would be better to immediately order a digital line from the telecom, in which there will already be ready-made VoIP traffic.
There should be no problems with faxes, everything works out of the box.
From personal experience, I can say that if the team does not have an experienced specialist, then it will be cheaper to hire a freelancer who will set it all up, teach it and put it into operation.

Answer 2

If there is no experience, then I recommend looking towards IP ATC Askozia
And I recommend that you immediately think about faxes, because they live their own lives. It is better to have a separate analog line with a fax machine, it will be much easier for you and your users.

Answer 3

1. Each employee has 2 network sockets - for a computer and for a telephone.
Let's start with the fact that the asterisk is spinning on a regular PC, and in order to have a landline phone, you need a gateway (which converts the digital to analog), so it's better to do this:
The server connects to the local network. Only one ethernet stretches to each workplace and only one socket is installed. Next, a gateway is connected to it (for example, linksys linksys spa2102), which has an ethernet output and can work in bridge mode + two telephone sockets for 2 different numbers.
2. All this is going to a regular local network through unmanaged switches.
Yes)
3. PBX server (asterisk) is connected to the network
Yes, it's a regular PC. For a beginner, I recommend Elastix. Ready distribution - installed and just click on the buttons.
4. Incoming lines are also connected to this server (how?)
If the incoming lines are analog, then again you need an analogue-to-digital hardware gateway, if IP telephony, then you simply enter the login and password and server name in the aster and that's it) like Skype. this is to simplify a lot)

Answer 4

For myself (for the Moscow number and virt.ATS) I chose the solution from youmagic.pro. I liked the solution with ease of setup and a free trial period for a week. I am very sorry that no one does this in my native Chelyabinsk.

Answer 5

If you do not want to understand the topic, try our service www.onlinepbx.ru
This is an online service, that is, we take care of all the server work, you just have to formulate a task.