G.722 Vs. G.711 - Cisco Community

All CommunityThis categoryThis boardKnowledge baseUsers cancel Turn on suggestions Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for  Search instead for  Did you mean:  All Community Networking This board Results: cancel Start a conversation

• Cisco Community
• Technology and Support
• Networking
• Routing
• G.722 Vs. G.711

Options

• Subscribe to RSS Feed
• Mark Topic as New
• Mark Topic as Read
• Float this Topic for Current User
• Bookmark
• Subscribe
• Mute
• Printer Friendly Page

31763 Views 0 Helpful 1 Replies

G.722 Vs. G.711

Brent Rockburn Level 2 Options

• Mark as New
• Bookmark
• Subscribe
• Mute
• Subscribe to RSS Feed
• Permalink
• Print
• Report Inappropriate Content

‎12-01-2009 02:49 PM - edited ‎03-04-2019 06:51 AM

I know this isn't the place for this but similar questions asked in the VOIP forum were never answered.

I was wondering if you guys have an docs outlining the difference/improvements in g.722 as oppose to g.711 if any.

Thanks,

Brent

I have this problem too Labels:

• Labels:
• Other Routing

0 Helpful Reply

• All forum topics
• Previous Topic
• Next Topic

1 Reply 1 Armando Yesua Garcia Calderon Cisco Employee Options

• Mark as New
• Bookmark
• Subscribe
• Mute
• Subscribe to RSS Feed
• Permalink
• Print
• Report Inappropriate Content

‎12-02-2009 01:58 PM

Hi, I don't think there's any CISCO document with all the details,but you can take a look to :http://www.broadcom.com/support/broadvoice/codec_comparison.php

In this whitepaper you can find some other details about this codec.http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/ps8537/prod_white_paper0900aecd806fa57a.html

Please note that the codec to use depends on your goal:http://www.dspdesignline.com/howto/201000337

Offering wideband voice is a great way to ensure the best possible quality of experience for users of VoIP equipment such as IP phones. IP phone and VoIP system designers may wish to choose from the following classes of codecs, depending on the most important system-design constraints:

Narrowband:

* G.711, G.726: Offers narrow-band voice with low processing requirements, and with typical bit-rates of 32-64 kbps. * Other narrow-band codecs with compression, such as G.729AB and G.723.1, offer bit-rates as low as 5.3 kbps, but require higher DSP processing horsepower.

Wideband:

* G.722: Offers wideband voice with low DSP processing requirement similar to standard G.726 ADPCM. However, it requires a bit-rate of 48-64 kbps per channel. * G.722.2: Offers wideband voice and compresses the bandwidth down to 12.65 kbps per channel. The trade-off is that it requires more processing cycles than G.722.

regards

Yesua

0 Helpful Reply Post Reply Learn, share, save

Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.

New here? Get started with these tips. How to use Community New member guide

Log in to Community

Quick Links Knowledge Articles Customers Also Viewed These Support Documents