Any tip on a phone provider in Dubai?

You have basically 2 options out of the best etisalat and du if you want a good service, good network coverage and a decent tarif plan for local use then you should go with etisalat but if you are going to make maximum amount of international calls then you should go with du because du charges for calls per second and etisalat charges by minute but there are some flaws with du because it does not have that good of a service as of etisalat and there are also network coverage problems with du
Personally I use etisalat