How to organize a mini-office at home?

Question

Telephony

Good afternoon! Please help me to solve my issue, I will be very grateful.
I am a young mother and cannot work full time, so I found a way out, I get a job as a telephone operator in small online stores (for example, diaper cakes), few clients, from 1 to 5 calls a week, they pay too little, but I I found 5 such stores and in each they give me a cell phone with a SIM card and bluetooth support, there are 5 of them in front of me, they are different in design, so I understand which store the client is calling, but I can’t constantly carry these with me phones and keep them constantly at the ear, as it is necessary to keep an eye on the baby, then stir the soup on the stove.
I still have to work at home for a long time up to 3 years at least, so I decided to make something like a mini call center at home.
Help me choose a solution
. I need that when the phone rings, the call goes, for example, to some device (such as a speakerphone) and I already answered from it.
It is important for me
- connection of 5 cell phones
- No forwarding .... because if all calls fall on one number, I will not know which store the client is calling (or some kind of visible forwarding with hints to which phone they are calling)
- free hands
- preferably without a headset, since the baby takes it off when in her arms
Initially, she considered the Jabra SPEAK 510, but there, as I understood from the description, only 2 simultaneously connected phones via bluetooth are possible ... and if the third one rings?
Can you suggest something, please, I really hope for your answer. Thank you!

Answer 1

The option is not very cheap, but just for 5 working SIM cards (if you find a smartphone for 2 SIM cards, then there will be enough space for your own number)
VoIP-GSM gateway for 4 SIM -> laptop / desktop computer with PBX on a virtual machine -> WiFi - > Smartphone with SIP client.
As a bonus, you will be able to receive calls not only at home, but also in a supermarket where there is access to WiFi.
It is also possible through 3G, but the voice quality can suffer greatly.
A Hybertone GOIP4 gateway will do just fine. You can find it for 13 thousand.

Answer 2

Here's a thing I came up with.
- We take the GSM-SIP gateway that was written above or another. You can just take not one, but several. Just look how cheap it is.
- Register here zadarma.com (there are others, I just use them, I checked it quickly, it should work like that)
- Set up the gateway in Config by line mode, that is, each phone number will have its own internal zadarma number
- Download the native zadarma client for smartphone and set up all 5 accounts in one application by entering the names in accordance with the lines / store names. When calling, it is written to which account the call is made. I think that it can also be duplicated on the application on a PC
Well, something like that. And you don't need to set up virtual machines and Asterisk.
Yes, and I advise if you do @rostel to take an inexpensive VPS for Asterisk and not bother with turning on your home PC, starting a virtual machine, etc.
UPD: If you don’t bother with searching the Internet on your smartphone at all, then you can set up forwarding lines from zadarma to your phone with the transfer of the store number. But in such cases, you will have to pay for an outgoing call to a mobile RF. Call forwarding to a landline is much cheaper, but it will work if you have caller ID to know which store the customer is calling.
Of course, you can take an unlimited tariff for $22, it includes 500 minutes for mobile, but it's up to you to decide whether you have enough traffic and whether it will be profitable.
maybe something is not clear, write.
UPD2: I also found this https://oktell.ru/utilites/sipgsm/ - this is to replace a not cheap sip-to-gsm gateway. The truth is I just found it and I'm looking at it myself.