I am new to IP telephony world . I am learning and i am facing a problem . One of the analog phone is configured on vg224 port just like all other analog phones but it is showing that registeration and IP address is Unknown. What is possible cause for that? what do i do to solve the problem and makes it work.
Device is Active
Device is not trusted
so when I dial from my phone to the ext.on that porti get a fast busy.and when I try dialing from that phone I get the dial tone but when I try dialing an extension I get a fast busy.
in the call manager showed Unknown so what do i do now.
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