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Cisco IP PHONE HTTP ERROR [0] - can't login

Szabo Tomi
Level 1
Level 1

Hello Everyone,

 

We installed CIsco ip telephones to CICM. The phone can be able to join to CICM. I can call the inside CM server, and I can record voices. But the agents can't login on the phone. If we go to settings --> login the phone sent udp request to the CICM, but the answer is HTTP ERROR [0].

 

The dhcp configuration is good, the DNS server konfiguration is good.

 

What should I do?

 

Thank you for your help!

Best Regard,

Tamas

1 Accepted Solution

Accepted Solutions

Szabo Tomi
Level 1
Level 1

It was DNS Issue.

View solution in original post

1 Reply 1

Szabo Tomi
Level 1
Level 1

It was DNS Issue.