Unfortunately you need to hardcode codecs on the inbound and outbound dial-peers for the transcoder to be invoked properly by the IOS in most cases; specially when dealing with CUE because with FastStart the media gets negotiated before the CFNA timer kicks in and then the H323 media doesn't get renegotiated after the call gets forwarded to VM. FastStart is enabled by default on the router; but just in case the command is: config t voice service voip h323 call start fast HTH
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Now, about the difference: there really isn't any from a functional stand point; but if you choose to use a NM there may be additional HW considerations when it comes to PVDM card distribution between the motherboard's PVDM slots and the NMs slots. Here are a couple of other usefull links: DSP calculator (includes ISR G2 platforms): http://www.cisco.com/web/applicat/dsprecal/dsp_calc.html http://www.cisco.com/en/US/prod/collateral/modules/ps3115/qa_c67_553073_ps10537_Products_Q_and_A_Item.html HTH
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VIC3 cards can be inserted in both NMs and chassis HWICs. I don't believe you need PVDM3 cards specifically to support them but a recent IOS is required (anything in the 15T should be good). You may want to go through these two links: http://www.cisco.com/en/US/products/ps10536/products_relevant_interfaces_and_modules.html#voicemod http://www.cisco.com/en/US/prod/collateral/modules/ps5365/product_data_sheet0900aecd801c595e.html HTH
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You can most of the time fix this issue in two ways: 1) Hard coding G729 on the inbound dial-peer 2) Toggling FastStart/SlowStart on the H323 leg. Do you get this problem when you call directly into the CUE from the CUCM or only when the call gets forwarded? If only when forwarded then go start with option 2. HTH
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You can use the trunk-group command within the controller to group timeslots and then point to the trunk groups from the dial-peers. Eg: Router(config)# controller T1 0
Router(config-controller)# pri-group timeslots 1-24 nfas_d primary nfas_int 0 nfas_group 0
Router(config-controller)# trunk-group L1 timeslots 1-5 preference 1
Router(config-controller)# trunk-group L2 timeslots 12-14 preference 2
Router(config-controller)# exit
Router(config)# controller T1 1
Router(config-controller)# pri-group timeslots 1-24 nfas_d backup nfas_int 1 nfas_group 0
Router(config-controller)# trunk-group L3 timeslots 1-5
Router(config-controller)# trunk-group L4 timeslots 12-14 preference 4
Router(config-controller)# exit
For more information search for "timeslots" in the "Command Lookup Tool" page here: http://tools.cisco.com/Support/CLILookup/cltSearchAction.do HTH
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