@ellen Not sure what the problem is. The user selects a domain and your app uses that domain to communicate via QNetwork AccessManager.

@diredko
you can take a look at the Scalability section of the documentation

The calculating scaling ratio section has an example that used to help me a lot when I first was confronted with this issue.

Thanks everyone for insight . I have some idea now from where i should start .

Hello i wish if i could help you. please i need to send voice over network using tcp socket and i believe you can help me if you give me your code (server and client side both )i will be very thankful.thank you soo much in advance.

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