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Voice port not visible in Cisco 2821

i have installed 4 port FXS voice module in a cisco 2821, but i'm not able to see the Voice ports in the running config, nor can i configure them. When i do show version, i'm able to see "4 Voice FXS Interfaces".

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Re: Voice port not visible in Cisco 2821

Hi, you also need the DSP module, PVDM2-xx. Without it, you will not be able to configure or use the voice interfaces.

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