call rings from PSTN before the IP Phone

Unanswered Question
Jul 2nd, 2008
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I have Cisco 2821 router IOS version 12.4(11)XW1, with FXO ports.

incoming calls to FXO from the PSTN side rings twice before it rings on the IP phone.

I have the same issue using call manager and call manager express.

could you please advice.

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paolo bevilacqua Wed, 07/02/2008 - 09:16
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Do you have caller-id enabled ?

mohdashraq Wed, 07/02/2008 - 20:22
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Hi Bevilacqu,

Yes, caller-ID is enabled on the router on all FXO ports


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