Multi router for several sim cards of different operators?

Question

network hardware

Multi router for several sim cards of different operators that can work simultaneously (increase in speed) or at least with switching to an operator, is there such a technique?

Answer 1

The solution has been found! Simple software https://speedify.com/ . By connecting 3 operators, of course, this is traffic at 3 am, at another time, the results are different but satisfactory for ordinary surfing and YouTube, alas, torrents only at night.

Answer 2

MPTCP, " True channel summation ".

Answer 3

https://www.goip-gsm.ru/articles/luchshij_gsm-shly... for example something like this.
I didn’t feel it myself, but in fact it is, after all, a bunch of ordinary FXS gateways.
And what is the task?

Answer 4

Ready-made pieces of iron will be expensive
Increase the speed - a very vague concept, depending on the available implementation method.
For example, it is possible to increase the speed of one connection so that speedtest shows an increase only by raising vpn bonding or a trunk (you raise separate vpn connections, and then raise linux bonding using these channels, configuring as you wish, either increasing bandwidth or channel reservation, or whatever you want) to the server, where the Internet connection speed is 2 times higher than required (because first the traffic will go from you to the vpn server, then from it to the target and the same back). At the same time, latency drops, ping increases. When using a SIM card provider's server (if it provides hosting), this deterioration will be minimal.
Google multi link vpn
More simple solutions, 'divide' the Internet according to some criterion (for example, by subnets, after doing a little research on the connections of each of the sim card providers used) and configure routing by setting the default gateway for each network in the route on the machine itself to the corresponding ip address given by the modem. This is the cheapest method of all possible, but not the most efficient, it can increase the speed of torrent downloads and in some cases surfing well, but it will not increase the bandwidth, i.e. There will be streaming restrictions.
The remaining solutions are the development of this idea, with the help of software.
google: combining two channels 3g or lte
will be both ready-made guides and ready-made services

Answer 5

I saw such a craft on the Internet - https://summator.me/
the button accordion is not mine, I can’t vouch for the quality,
but suddenly it works

Answer 6

You can get laid. Take microt from USB, connect USB HUB to it, connect several modems, and set up traffic balancing.
Of the minuses
- the maximum speed is equal to the speed of one modem
- we can work as NAT, then you will get 2 NAT
- if NAT is enabled on the modem, then all modems can have the same IP address, you have to play around with the routing table))
) VPS, set up tunnels on VPS from each modem, merge channels, then it will turn out to squeeze the maximum speed)