[cisco-voip] CUCM6+E1 PRI A-law

[Oleg Skomorokhov]

And looks like there's no way to reorder that preference.
Well, thanks anyway.

On Thu, Oct 29, 2009 at 10:08 PM, Ryan Ratliff <rratliff at cisco.com> wrote:

> Not that I can tell.  CUCM makes no distinction between a-law and u-law for
> g.711.  The only reason a phone would use one vs the other is if the device
> the phone was talking to only advertised one and not the other.   Internally
> to CUCM there is a preference among codecs that use the same bandwidth.  For
> the 64kbps codecs this preference is g.722, g.711u, g.711a.
>
> -Ryan
>
> On Oct 29, 2009, at 2:59 PM, Oleg Skomorokhov wrote:
>
> it's set to a-law, but no luck.
>
> but forget the pri, is there a way to get intracluster calls negotiate 711
> a-law ? i mean between 2 nearby ip phones.
>
> On Thu, Oct 29, 2009 at 9:41 PM, Ryan Ratliff <rratliff at cisco.com> wrote:
>
>> What is set for the PCM Type in the CCMAdmin web page for the PRI?
>>
>> That's the only place I can see where you can set a-law vs u-law.
>>
>>  -Ryan
>>
>> On Oct 29, 2009, at 2:36 PM, Oleg Skomorokhov wrote:
>>
>> There are some problems when talking with TELCO's support. some cracking
>> and knocking sounds. No slips or other errors on E1 present.
>>
>> But mostly, it's just annoying me. Why should i use u-law in europe, if it
>> was designed for US?
>>
>> So, even if we forget the E1 PRI, how to make the INTRAcluster calls to
>> negotiate g711 A-law codec?..
>>
>> On Thu, Oct 29, 2009 at 9:31 PM, Ryan Ratliff <rratliff at cisco.com> wrote:
>>
>>> The compand type on your POTS leg has nothing to do with the codec or
>>> compand type on the voip leg.
>>>
>>> Is this causing any problems or just something you noticed?
>>>
>>>  -Ryan
>>>
>>> On Oct 29, 2009, at 2:20 PM, Oleg Skomorokhov wrote:
>>>
>>> Hello all.
>>>
>>> I've got a e1 pri line in my office, terminating by cisco 2821. The
>>> compand type for E1 (Europe) is A-law, and show voice port 0/0/0:15 also
>>> tells me that.
>>> E1 is registered via mgcp, and i also see the compand type A-law in
>>> options there.
>>>
>>> When i press the question button twice during the pstn call, the
>>> negotiated codec is u-law.
>>>
>>> The default codec in Region is "G711" (no option for a-law or u-law)
>>>
>>> Is there such an option in CUCM to change the default modulation type for
>>> g711 codec?
>>>
>>> Thank you.
>>>  _______________________________________________
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>>> cisco-voip at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>
>>>
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>>
>
>
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