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UK Requirements for One Net Business applications
When I tried to set up my snom® desk phone it showed the error message No NTP server and could not complete setup.
Your desk phone cannot connect to the network.
Check that you have access to the internet.
To check, you could try plugging the Ethernet cable from your desk phone into another device, for example, a laptop.
If that doesn't work, check the firewall settings. Make sure that bntp.one.vodafone-ip.de with UDP port 123 isn't blocked
Contact the One Net Business team.
Talk to the One Net Business administrator in your company. They understand your system best.
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