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

[Oleg Skomorokhov]

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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>
>
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