sip 503 - dns timeout zoiper

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i can't receive calls.

They say me: sip 503 - dns timeout zoiper

I need your help please

asked Jun 16, 2017 in Windows by hamzaberjamy (120 points)  
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1 Answer

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The SIP 503 error means that the DNS server is not responding at times. You can try replacing the hostname with an IP address. It may also be a firewall issue.

We suggest that you contact your VoIP service provider and ask them why you are seeing this error message.

answered Jun 16, 2017 by tsvetan.tsvetkov (320 points)  
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