[cisco-voip] Unity Connections (Native Transcoding)

[ccieid1ot]

What are you trying to achieve to not use the unity for transcoding?

duy
ccie #27737 voice

tmobile g2
On Jan 25, 2011 5:30 PM, "Pat Hayes" <pat-cv at wcyv.com> wrote:
> You are saying that when you have UC setup to advertise G711 and G729,
> your G729 calls to it work, but when it is setup to only advertise
> G711, G729 calls fail? That sounds like UC is transcoding just fine
> and the problem is with your hardware transcoders. Have you verified
> that the transcoders are listed in the device pool/MRGL associated
> with the voicemail ports and that other devices with that same device
> pool are able to complete similar call flows?
>
>
> On Tue, Jan 25, 2011 at 4:39 PM, Mark Marquez <MMarquez at goldsys.com>
wrote:
>> I hope someone can provide some help. Below is an explanation of my
iissue.
>>
>>
>>
>> In Unity Connections I've set the Port Group settings to only advertise
G711
>> mu-law.  From reading I found that Unity Connections does Native
>> Transcoding. My remote branch devices are set to use G729 over the WAN.
>> When I dial voicemail from remote branch phones using either the Pilot
>> number or by using the Messages button calls get a fast busy.  If I
re-add
>> the G729 codec to the advertised codec list on the Unity Connections Port
>> Group then calls complete. Apparently Native Transcoding on the Unity
Server
>> is not working. I do have hardware transcoding resources available to the
>> phones in question but they are not getting invoked. My understanding is
>> that this is normal since Unity Connections should do the transcoding
>> natively via its CPU.  Any help is appreciated.
>>
>> BTW, phones at headquarters which are set to use G711 do work when Unity
>> Connections is set to only advertise G711.  Remote branch phones
connecting
>> over the WAN using G729 fail.
>>
>>
>>
>>
>>
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>>
>>
>
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