What is the best job for communication engineer?

Hi

can i ask aquestion

What is the best job for a engineer have an electronic and comunication engineering certificate and take ccna course but not certificate?

i'm confused Network communication is better or what field is better for the futcher.



i have another question?

i work in a colsultant office in the field of light current (fire-alarm system,intrusion systems,CCTV,sond system,telephone system cabling,...)

sond is good for all of that but the problem is there is a lot of mess in that office and i don't like pople whome work in there,

what can i do?What is the best job for communication engineer?
I suggest Satellite communications or telecom such as with Sprint, T-mobile, Verizon, Cingular, etc.