[VoiceOps] HD / G722

mgraves at mstvp.com mgraves at mstvp.com
Wed Mar 15 16:24:26 EDT 2017

I believe that ZipDX is accessible via Inteliquent in G.722. Although, I'm not sure if that involves dialing a special number. I'll look into the matter.
We have long been interested in exchanging traffic in G.722. Approaching the wireless carriers directly proved fruitless.

 Michael Graves
 mgraves at mstvp.com
o(713) 861-4005
 c(713) 201-1262
 sip:mgraves at mjg.onsip.com
 skype mjgraves

--------- Original Message --------- Subject: Re: [VoiceOps] HD / G722
From: "Nick Olsen" <nick at flhsi.com>
Date: 3/15/17 3:15 pm
To: mark at ecg.co
Cc: "voiceops at voiceops.org" <voiceops at voiceops.org>

 My apologies, Apparently I'm a bit green on the process.
>From what I recall from past conversations on this list, A few carriers (Inteliquent being the one that stands out in my memory) would negotiate G722 if it worked for all parties. I think I even recall a number (Not a URI) being provided at that time with someone saying "This number will accept G722 on the Inteliquent network".
I'm not actually the one doing any interconnecting here. I'm purchasing wholesale SIP. But I'm told, If I send a call in G722, They'll send out whatever I send. So, for S&G's, I was hoping to find someone else perhaps on any particular network known to support 722 that had a number to make a few test calls with. Since my carrier has interconnects with many networks, It's possible it would work to many of those networks?
I've used the zipdx demo (Thanks mgraves). But I know my switch supports 722, And that I can make direct IP calls to zipdx in 722.
Thanks for the info!
  Nick Olsen
Sr. Network Engineer
Florida High Speed Internet
(321) 205-1100 x106



 From: mark at ecg.co
 Sent: Wednesday, March 15, 2017 3:38 PM
 To: nick at flhsi.com
 Cc: "voiceops at voiceops.org" <voiceops at voiceops.org>
 Subject: Re: [VoiceOps] HD / G722  
In the US, you'll only get G.722 over which non-TDM PSTN networks.   
So this question might be asked, "Is there a number that answers G.722 on Level(3)'s network?" or, "On Bandwidth's network?".  For Level(3), there used to be many, but at last testing, Level(3) had clamped down their codec list to G.711 only. I'd be glad if someone has newer news.
This is just a hunch though: If you peer with the wireless carriers, directly to their SBCs with interconnection agreements with appropriate minimums, and it's to their advantage to peer to provide HD Voice, you can expect to exchange AMR-WB traffic to their VoLTE customers. 
      Mark R Lindsey, SMTS  +1-229-316-0013
mark at ecg.co / http://ecg.co/
Blog: http://200ok.info/ 


    On Mar 15, 2017, at 15:30 , Nick Olsen <nick at flhsi.com> wrote:
   Anyone have a test number that will answer in G722? Looking to do some HD testing.
Furthermore, Anyone have any success sending an HD call to any of the wireless guys? VZW/ATT/TMO all seem to support AMR-WB (G722.2) at least on the UE to IMS side. Surely they won't transcode for me 722>722.2?


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