We have installed the Zoiper 5 programm

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We have installed the Zoiper 5 programm, followed all the instructions but nobody can reach us cause our line is always busy. and when we are traying to call someone the  call just drops and it says the call is ended. The call infromation says "service unavailable( code.503) . How can we fix this issue?

asked Feb 21, 2020 in General by polyglot (120 points)  


Make sure that all account details and the server hostname are entered correctly. If the issue is appearing randomly it may be temporary issue with your VoIP provider.

For additional information and assistance regarding this error message, you should consult with your service provider.

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