Hi everyone,

I'm looking for a 4G router with the following very necessary specifications among others:-

1. Have a fully functional USSD interface.

2. Bands that it must have are B1,B3,B7, B8, B20, B28, it can also have others but not necessary.

3. Have dual sim capability to facilitate a fail-over procedure.

4. Does not need additional antennae to provide a decent signal/connectivity.

Possible contenders were Teltonika RUTX11, problem is my budget is about $150. Tp-Link ArcherMR600 would have been good despite it is not a dual sim device. Cudy 4G CAT6 LT700 seemed to check all the boxes until I tried its online emulator to enable USSD but it kept returning to the same page with the same query without enabling USSD here :- {support(𝘥𝘰𝘵)cudy(𝘥𝘰𝘵)com(𝘴𝘭𝘢𝘴𝘩)emulator(𝘴𝘭𝘢𝘴𝘩)LT700V(𝘴𝘭𝘢𝘴𝘩)cgi-bin(𝘴𝘭𝘶𝘴𝘩)luci(𝘴𝘭𝘢𝘴𝘩)admin(𝘴𝘭𝘢𝘴𝘩)setup}.  I am open to suggestions that one has had an experience with. Kindly suggest some I can consider if you are sure of them, I don't want to buy an uncertain suggestion.