Jobeethemage
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pvdm on a 2911
Am I correct in saying that voice ports will not work on a 2911 without at least 1 pvdm3 installed?
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You need PVDMs if you are connecting to the PSTN via analog or ISDN lines. If you have a SIP connection to your telco profider, you only need PVDMs for any transcoding you may require(but you need a CUBE license and a CUBE enabled IOS version).