How to connect 3g modem Beeline to Mikrotik?

Question

Computer networks

I just can’t get a stable 3g modem connection from Beeline ZTE MF100 on Miktorik RB2011uias.
The connection is disconnected every 3 minutes. A Google search turned up something about modem AT commands that must be sent to the server in order to maintain the connection. (Exactly in the case of the beeline). As I understand it, this logic is usually implemented by a client application from a PC. But how to do it with Mikrotik is my question.
A fragment of the router log will bring some clarity:
.....
07:46:13 route, debug Accept add 10.1.10.2/32
07:46:13 route, debug Skip update 0.0.0
. Commit prefix 10.1.10.2/32
07:46:13 route,debug End redistribution
07:49:00 async,ppp,debug,packet Beeline 3g: rcvd LCP TermReq id=0x4
07:49:00 async,ppp,debug Beeline 3g: LCP closed
07:49:00 async,ppp,debug Beeline 3g: CCP lowerdown
07:49:00 async,ppp,debug Beeline 3g: BCP lowerdown
07:49:00 async,ppp,debug Beeline 3g: BCP down event in starting state
07:49:00 async,ppp,debug Beeline 3g: IPCP lowerdown
07:49:00 async,ppp,debug Beeline 3g: IPCP closed
07:49:00 async ,ppp,debug Beeline 3g: IPV6CP lowerdown
07:49:00 async,ppp,debug Beeline 3g: IPV6CP down event in starting state
07:49:00 async,ppp,debug Beeline 3g: MPLSCP lowerdown
07:49:00 async, ppp,debug,packet Beeline 3g: sent LCP TermAck id=0x4
07:49:00 async,ppp,debug Beeline 3g: LCP lowerdown
07:49:00 async,ppp,info Beeline 3g: terminating...

Answer 1

ZTE MF100?
Unlock it.
ZTE MF100 from Beeline, in addition to the fact that the lock ties it to this operator, it also has the feature that it is waiting for a signal from its Windows program, otherwise it will fall off every three minutes. If you reflash and unlock it, then it stops checking with the program and starts working normally. I myself have such a modem and I myself encountered a similar problem, only when used on a laptop with GNU / Linux, and not when stuck into a router with an OS that violates the GNU GPL.
By the way, even flashing the modem (into the firmware from MF180) can activate voice functions in it, read about it on w3bsit3-dns.com or google it.