pvdm on a 2911

Am I correct in saying that voice ports will not work on a 2911 without at least 1 pvdm3 installed?
JobeethemageAsked:
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José MéndezCommented:
Depends on your hardware:

http://www.cisco.com/c/en/us/support/docs/voice/call-routing-dial-plans/22377-e-doc-voice-card-recognition.html#dsps

you can review what you have on your 2911 with the command <show inventory>
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sr75Commented:
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).
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