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Re: [codec] #16: Multicast?

Cullen Jennings <fluffy@cisco.com> Wed, 12 May 2010 15:12 UTC

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From: Cullen Jennings <fluffy@cisco.com>
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Date: Wed, 12 May 2010 09:00:10 -0600
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References: <062.7439ee5d5fd36480e73548f37cb10207@tools.ietf.org> <3E1D8AD1-B28F-41C5-81C6-478A15432224@csperkins.org> <D6C2F445-BE4A-4571-A56D-8712C16887F1@americafree.tv> <C0347188-A2A1-4681-9F1E-0D2ECC4BDB3B@csperkins.org> <u2x6e9223711004210733g823b4777y404b02330c49dec1@mail.gmail.com> <000001cae173$dba012f0$92e038d0$@de> <r2q6e9223711004211010gfdee1a70q972e8239fef10435@mail.gmail.com> <001101cae177$e8aa6780$b9ff3680$@de> <t2t6e9223711004211119i6b107798pa01fc4b1d33debf1@mail.gmail.com> <002d01cae188$a330b2c0$e9921840$@de> <CB68DF4CFBEF4942881AD37AE1A7E8C74AB3F4A017@IRVEXCHCCR01.corp.ad.broadcom.com> <4BD11C50.2020206@usherbrooke.ca> <CB68DF4CFBEF4942881AD37AE1A7E8C74AB3F4A270@IRVEXCHCCR01.corp.ad.broadcom.com> <12151537-165D-426A-B71F-8B3D76BE4854@cisco.com> <CB68DF4CFBEF4942881AD37AE1A7E8C74B901372FE@IRVEXCHCCR01.corp.ad.broadcom.com> <20100430230756.13687lc1s5o89gsc@mail.skype.net> <CB68DF4CFBEF4942881AD37AE1A7E8C74B90345522@IRVEXCHCCR01.corp.ad.broadcom.com>
To: Raymond Chen <rchen@broadcom.com>
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Subject: Re: [codec] #16: Multicast?
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On May 4, 2010, at 7:15 PM, Raymond (Juin-Hwey) Chen wrote:

> the 3*(codec frame size) delay is very real for IP phone

This does not match the measurements I have. And I certainly don't have 100+ year voip experience but I do have two of the #1 selling enterprise phones connected to an oscilloscope. Test with other phones suggest most the major vendors of IP hard phones have fairly comparable performance when it comes to delay. 
 

Cullen

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