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How to Change Preferred Codecs for Multiple Extensions

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Adjusting preferred codecs for each extension is an effective troubleshooting step. Learn more on how to change preferred codecs by logging into Account Manager.
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Note: To adjust the preferred codec for extensions in Virtual Office Configuration Manager, click here.

Overview

8x8 offers users their option of codecs to select for each extension. Adjusting this option has sometimes been found to be an effective troubleshooting step. 

To adjust codecs for multiple extensions

  1. Log in to Account Manager.
  2. Click Phone System.
  3. Click Edit Multiple Extensions > Edit.
  4. On the right-hand panel, scroll all the way to the right (scroll bar on the bottom right of panel). The Preferred Codec column displays on the far right.
  5. Use the pull-down menus to adjust the preferred codec for each extension you wish to change.
  6. Click Save Changes at the bottom of the screen.
  7. The phone(s) should restart within 30 seconds. If they do not, use the phone menu(s) to manually restart.

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More on Codec Settings

G.729 (compressed toll quality)

- Bandwidth: 30 kbps upload and 30 kbps download.
- Designed to conserve network bandwidth with slight decrease in voice quality.
- Compatible with all 8x8 devices except Virtual Office Mobile, KIRK Cordless phone and 8x8 Softphone.

G.711 (toll quality)

- Bandwidth: 90 Kbps upload and 90 Kbps download
- Designed for toll quality without any voice compression.
- Compatible with all 8x8 devices, Virtual Office Mobile and Softphone.

G.722 (HD voice quality)

- Bandwidth: 90 Kbps upload and 90 Kbps download
- Designed for high fidelity voice and best sound quality.
- Compatible with all 8x8 devices except Virtual Office Mobile, KIRK Cordless, 8x8 Softphone, Cisco SPA122 ATA, Softalk Office
and PSTN (traditional telephone service).
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  • Changing codec from G.729 to G.711 or G.722(HD Voice) will require additional network and Internet bandwidth. Check with your network administrator before changing the codec.
  • Saving changes to your codec may cause the telephone to restart after the current call is completed. Reset will not interrupt a call in progress.