In order to covert a traffic in Erlang to Mbits, you can use the below:
First of all, you have to convert your traffic from Erlang to Minutes@Busyhour. This can be done by multiplying the traffic in Erlang by 60.
You have two types of services with a traffic in Erlang: CS voice and CS video
For the voice:
(Traffic_Minutes@Busyhour x 60 x EBR) / (3600 x 1000) = xxx Mbit/s@BusyHour
Where EBR is the Equivalent Bit Rate for the service.