04-08-2012 01:00 PM - edited 03-16-2019 10:32 AM
Hello,
Is it possible to transcode 3 simultaneous calls from G729r8 to G711 without any DSP modules. I have Cisco 2811 , IOS 12.4(13r)T11, 2 x VWIC2-1MFT-T1/E1 cards. In other words how many calls can I transcode between this 2 codecs with Cisco 2811 internal resources?
Thank you.
04-08-2012 01:06 PM
no transcoding without DSPs
04-08-2012 01:29 PM
Roman,
You need DSP for transcoding...
To know how many DSP you need you can use the cisco dsp calculator here..
http://www.cisco.com/cgi-bin/Support/DSP/cisco_prodsel.pl
Note: you need CCO login.
For the updated dsp calculator with PVDM3 , you can also access it here: http://www.cisco.com/go/tools --> Just look for DSP calculator
04-08-2012 05:19 PM
Also, you need PVDMs to enable those 2 VWICs assuming you're going to use them.
HTH
java
if this helps, please rate
www.cisco.com/go/pdihelpdesk
04-08-2012 05:27 PM
unless he uses them for channel-groups and runs voip over data
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