No, your only limits are the bitrate at which you can stream and the number of slots. Some streaming providers impose extra transfer limits on accounts, for example 500GB - and although it sounds a lot, 500GB a month would only allow you to support an average of 12 listenersat 128kbps if broadcasting 24 hours a day. With MixStream, what you pay for is what you get.
If you only plan on streaming for a few hours a week and want to save some money, then we can set up a streaming account with limited transfer - please contact us for info.
Please note that customers on the value bandwidth network may be subject to an acceptable usage policy.