[VoIP] Codec (or is it Codecies?)

Paul Wills pdwills at verizon.net
Wed Mar 14 08:48:40 CST 2007


Great! Thanks.  I will make the changes tonight.

PDW


>From: Shane Young <voiptandem at shaneyoung.com>
>Date: 2007/03/14 Wed AM 09:42:38 CDT
>To: voip at ckts.info
>Subject: Re: [VoIP] Codec (or is it Codecies?)

>Basic rule of thumb is always use an uncompressed codec unless you  
>need/want to use a compressed codec for a particular reason.
>
>
>For your internal on-lan devices, I would:
>
>disallow=all
>allow=ulaw
>
>On my external devices, I still prefer ulaw beacuse I'd rather use it  
>(it sounds better) but allow others to connect to me with codecs they  
>my prefer.
>
>So, I might have something like this:
>
>disallow=all
>allow=ulaw
>allow=g726
>allow=gsm
>
>The amount of bandwidth used depends on a lot of things including the  
>transport type (ethernet, ADSL, etc)
>
>ulaw= about 80-106kbps
>g726= about 48-94kbps
>gsm=  about 29-63kbps
>
>
>Quoting Paul Wills <pdwills at verizon.net>:
>
>> I'm afraid that I may have totally messed up my list of codecs.
>>
>> For an installation that is using SIP internally and IAX over the   
>> network, does anyone have a list of the most appropriate codecs and   
>> the optimum preference order?
>>
>> Thanks,
>>
>> PDW
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>>
>
>--Shane
>+1-821-7311 CNET
>
>
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