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callerid displays as " unknown"

Hi All

Sometimes  callerid displays  as " unknown"  or  " router ip"  " or call manager ip "

Why does it happenes

Please help

Thank you for your supports

1 REPLY

callerid displays as " unknown"

Can you provide us a little more detail to your setup?

CUCM or CME?

What Version?

How are your gateways setup?  H323 or MGCP

What is your PSTN connectivity?  POTS, PRI, SIP

Thanks!

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