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macman4hire

join:2009-03-30
Port Saint Lucie, FL
Reviews:
·NetTalk

PBXes -- Trial period for HD Voice (G.722 vocoder)

Posted below is an email sent me from PBXes:

PBXes -- Trial period for HD Voice (G.722 vocoder)
...

Dear User,

following some preliminary trials during the past four weeks, we have enabled the G.722 vocoder across all servers, on a trial basis. This permits PBXes' users to experience the advantages of HD voice, if their IP-phone, DECT handset or soft-phone supports the G.722 vocoder, and it is currently activated on their SIP UA.

All ATAs are automatically excluded, as they don't support anything better than G.711, since the telephone sets connected to their FXS ports don't support the additional frequencies required.

During the trial, we wish to monitor how call setup performs, how many SIP UAs will take advantage of it, resolve any lingering issues with it, and judge whether to add it as a permanent feature.

In order to activate the G.722 vocoder in your account, the Software version should be changed to Newest, in the Personal Data section.

Enjoy the newfound clear-crystal sound.

Kindest regards,
i-p-tel GmbH
www.i-p-tel.com


Davesworld

join:2007-10-30
Everett, WA

said by macman4hire:

Posted below is an email sent me from PBXes:

PBXes -- Trial period for HD Voice (G.722 vocoder)
...

Dear User,

following some preliminary trials during the past four weeks, we have enabled the G.722 vocoder across all servers, on a trial basis. This permits PBXes' users to experience the advantages of HD voice, if their IP-phone, DECT handset or soft-phone supports the G.722 vocoder, and it is currently activated on their SIP UA.

All ATAs are automatically excluded, as they don't support anything better than G.711, since the telephone sets connected to their FXS ports don't support the additional frequencies required.

During the trial, we wish to monitor how call setup performs, how many SIP UAs will take advantage of it, resolve any lingering issues with it, and judge whether to add it as a permanent feature.

In order to activate the G.722 vocoder in your account, the Software version should be changed to Newest, in the Personal Data section.

Enjoy the newfound clear-crystal sound.

Kindest regards,
i-p-tel GmbH
www.i-p-tel.com
Interesting blanket declaration of ALL ATAs automatically being excluded as there are g.722 capable ATAs on the market. I know you are limited to what kind of handset you use on the FXS ports of such devices.

The literature on my Audiocodes MP-118 FXS suggests the limitation of only using 6 ports rather than all 8 when g.722 is employed. Standard DECT 6.0 with it's g.726 codec is excluded but cat-IQ DECT systems such as some Philips and Panasonic models and of course Siemens as well as corded are another story altogether.

Ooma is claiming that the FXS port on the Telo can handle HD voice but it requires a corded handset and only SOME cordless but no specifics as to which. Of course we know that cat-IQ DECT uses the g.722 codec rather than g.726.

Is there anything written in stone that says that an FXS port MUST have a 4khz upper audio limit?

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