Just out of curiosity I tried finding the vendors deploying transmission equipment, doing transmission planning and fabricating transmission design (if required, as most vendors do not involve transmission designing).
In telecommunications, transmission is either optical or through microwaves. So before going through the following chart, it should be kept in mind that the vendors are strictly for microwave transmission only and do not involve core and other areas..jpg)
*Siemens and NSN are mentioned separately because before the merger in 2007, Telenor had Siemens’ equipment deployed