[VoiceOps] help

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Tudor Seicarescu
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________________________________
From: "voiceops-request at voiceops.org" <voiceops-request at voiceops.org>
To: voiceops at voiceops.org
Sent: Wednesday, September 14, 2011 8:22 AM
Subject: VoiceOps Digest, Vol 27, Issue 10

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Today's Topics:

   1. Re: Cell Phone to SIP provider (Matthew S. Crocker)
   2. Re: Cell Phone to SIP provider (Carlos Alvarez)


----------------------------------------------------------------------

Message: 1
Date: Wed, 14 Sep 2011 07:24:32 -0400 (EDT)
From: "Matthew S. Crocker" <matthew at corp.crocker.com>
To: Paul Timmins <paul at timmins.net>
Cc: "VoiceOps at voiceops.org" <voiceops at voiceops.org>
Subject: Re: [VoiceOps] Cell Phone to SIP provider
Message-ID: <a2e95fd1-297b-44d5-a9d3-9f6ad2644f34 at zimbra1.crocker.com>
Content-Type: text/plain; charset="utf-8"

Of course there is no reason why SIP couldn't be used for signaling and just establish the voice over a GSM / CDMA codec. The cell tower could transcode to RTP. Getting SIP direct to the handset would be good . The cell towers would just need to act like a SIP proxy 

----- Original Message -----

> From: "Paul Timmins" <paul at timmins.net>
> To: "Scott Berkman" <scott at sberkman.net>
> Cc: "VoiceOps at voiceops.org" <voiceops at voiceops.org>
> Sent: Wednesday, September 14, 2011 12:07:14 AM
> Subject: Re: [VoiceOps] Cell Phone to SIP provider

> My android phones do SIP user interface integration over HSDPA and
> EVDO respectively, and frankly, the voice quality isn't that great.
> Much worse than the underlying GSM or CDMA signal bar for signal
> bar.

> There's a reason the carriers aren't doing this yet.
> -Paul

> On Sep 13, 2011, at 11:32 PM, Scott Berkman wrote:

> > You might want to see if LightSquared has anything for you, they
> > dub
> > themselves the ?only wholesale-only mobile carrier?, but I?m not
> > sure what they can offer today.
> 

> > http://www.lightsquared.com/
> 

> > Also, aren?t some of the newer cellular technologies (UMTS or EVDO)
> > inherently built on SIP for the voice portion of the network?
> > That?s
> > not an answer to your problem, but?
> 

> > One other thing you might want to look into is an OS that allows
> > the
> > default phone app to use SIP over the data connection natively (as
> > opposed to using a separate soft phone application that might not
> > integrate as well to the UI). I believe this was preset in versions
> > of WM6, but that?s somewhat old now and I have no idea if it?s
> > built
> > into any other platforms.
> 

> > http://voipguides.blogspot.com/2008/05/voip-sip-client-for-windows-mobile-6.html
> 

> > -Scott
> 

> > From: voiceops-bounces at voiceops.org
> > [mailto:voiceops-bounces at voiceops.org] On Behalf Of Carlos Alvarez
> 
> > Sent: Tuesday, September 13, 2011 3:44 PM
> 
> > To: VoiceOps at voiceops.org
> 
> > Subject: Re: [VoiceOps] Cell Phone to SIP provider
> 

> > It is my understanding that:
> 

> > a. The original post asked about sending the calls to the end point
> > (cell phone) as SIP, not cellular voice.
> 

> > b. Sprint's MIS (Mobile Integration Service) merely allows a
> > company
> > or service provider to connect to them directly over TDM or SIP and
> > do seamless integration of the cell and other phones, but the call
> > is still cellular voice to the handset.
> 

> > I am facing a competitive sale right now to a municipality where
> > there is only one other carrier who can compete with us, and only
> > on
> > that one feature.
> 

> > On Tue, Sep 13, 2011 at 12:33 PM, Matthew S. Crocker <
> > matthew at corp.crocker.com > wrote:
> 

> > Sprint does this. The cell phones register to the cell tower as
> > cell
> > phones. The cell tower converts to SIP and registers with the call
> > agent. Broadsoft mentioned something about this at the last
> > connections conference. You would get a private IP connection into
> > Sprint to carry the voice traffic. This would be perfect for me if
> > Sprint had a decent cell network in my area. Does anyone know if
> > AT&T or Verizon (LTE) do it as well?
> 

> > http://newsroom.sprint.com/article_display.cfm?article_id=1628
> 

> > > From: "Oren Yehezkely" < orenyny at gmail.com >
> > 
> 
> > > To: " VoiceOps at voiceops.org " < voiceops at voiceops.org >
> > 
> 
> > > Sent: Tuesday, September 13, 2011 1:00:02 PM
> > 
> 
> > > Subject: [VoiceOps] Cell Phone to SIP provider
> > 
> 

> > > Hello,
> > 
> 

> > > I am looking for a cell phone company that is capable of
> > > providing
> > > SIP service instead of sending the calls over the cellular
> > > network.
> > 
> 

> > > If anybody here is capable of providing such a service or can
> > > recommend a vendor that can do that, please let me know.
> > 
> 

> > > Thanks,
> > 
> 

> > > Oren
> > 
> 

> > > _______________________________________________
> > 
> 
> > > VoiceOps mailing list
> > 
> 
> > > VoiceOps at voiceops.org
> > 
> 
> > > https://puck.nether.net/mailman/listinfo/voiceops
> > 
> 
> > _______________________________________________
> 
> > VoiceOps mailing list
> 
> > VoiceOps at voiceops.org
> 
> > https://puck.nether.net/mailman/listinfo/voiceops
> 

> > --
> 

> > Carlos Alvarez
> 

> > TelEvolve
> 

> > 602-889-3003
> 

> > _______________________________________________
> 
> > VoiceOps mailing list
> 
> > VoiceOps at voiceops.org
> 
> > https://puck.nether.net/mailman/listinfo/voiceops
> 
> _______________________________________________
> VoiceOps mailing list
> VoiceOps at voiceops.org
> https://puck.nether.net/mailman/listinfo/voiceops
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Message: 2
Date: Wed, 14 Sep 2011 08:22:01 -0700
From: Carlos Alvarez <carlos at televolve.com>
To: "VoiceOps at voiceops.org" <voiceops at voiceops.org>
Subject: Re: [VoiceOps] Cell Phone to SIP provider
Message-ID:
    <CAFn1dUGEDdy=s90yB2y-MqnGPHzDjHgheWXgijzj1zPxLNDNNA at mail.gmail.com>
Content-Type: text/plain; charset="windows-1252"

You seem to be suggesting that there is a technical reason the carriers
don't do this.  There is not.  Carriers prioritize voice channels, which
really are just data also, though not using SIP.  They *could* choose to
prioritize data, or do the usual QoS for the data so VoIP has good quality,
just like any other IP connection.  They won't, because it's a huge threat
to their business model.


On Tue, Sep 13, 2011 at 9:07 PM, Paul Timmins <paul at timmins.net> wrote:

> My android phones do SIP user interface integration over HSDPA and EVDO
> respectively, and frankly, the voice quality isn't that great. Much worse
> than the underlying GSM or CDMA signal bar for signal bar.
>
> There's a reason the carriers aren't doing this yet.
> -Paul
>
> On Sep 13, 2011, at 11:32 PM, Scott Berkman wrote:
>
> You might want to see if LightSquared has anything for you, they dub
> themselves the ?only wholesale-only mobile carrier?, but I?m not sure what
> they can offer today.****
> ** **
> http://www.lightsquared.com/****
> ** **
> Also, aren?t some of the newer cellular technologies (UMTS or EVDO)
> inherently built on SIP for the voice portion of the network?  That?s not an
> answer to your problem, but?****
> ** **
> One other thing you might want to look into is an OS that allows the
> default phone app to use SIP over the data connection natively (as opposed
> to using a separate soft phone application that might not integrate as well
> to the UI).  I believe this was preset in versions of WM6, but that?s
> somewhat old now and I have no idea if it?s built into any other platforms.
> ****
> ** **
>
> http://voipguides.blogspot.com/2008/05/voip-sip-client-for-windows-mobile-6.html
> ****
> ** **
> -Scott****
> ** **
> *From:* voiceops-bounces at voiceops.org [mailto:
> voiceops-bounces at voiceops.org] *On Behalf Of *Carlos Alvarez
> *Sent:* Tuesday, September 13, 2011 3:44 PM
> *To:* VoiceOps at voiceops.org
> *Subject:* Re: [VoiceOps] Cell Phone to SIP provider****
> ** **
> It is my understanding that:****
> ** **
> a.  The original post asked about sending the calls to the end point (cell
> phone) as SIP, not cellular voice.****
> ** **
> b.  Sprint's MIS (Mobile Integration Service) merely allows a company or
> service provider to connect to them directly over TDM or SIP and do seamless
> integration of the cell and other phones, but the call is still cellular
> voice to the handset.****
> ** **
> I am facing a competitive sale right now to a municipality where there is
> only one other carrier who can compete with us, and only on that one
> feature.****
>
> ** **
> On Tue, Sep 13, 2011 at 12:33 PM, Matthew S. Crocker <
> matthew at corp.crocker.com> wrote:****
>
> Sprint does this.   The cell phones register to the cell tower as cell
> phones.  The cell tower converts to SIP and registers with the call agent.
> Broadsoft mentioned something about this at the last connections
> conference.  You would get a private IP connection into Sprint to carry the
> voice traffic.    This would be perfect for me if Sprint had a decent cell
> network in my area.   Does anyone know if AT&T or Verizon (LTE) do it as
> well?
>
> http://newsroom.sprint.com/article_display.cfm?article_id=1628
>
> ****
> ------------------------------
>
> *From: *"Oren Yehezkely" <orenyny at gmail.com>
> *To: *"VoiceOps at voiceops.org" <voiceops at voiceops.org>
> *Sent: *Tuesday, September 13, 2011 1:00:02 PM
> *Subject: *[VoiceOps] Cell Phone to SIP provider****
>
>
>
> Hello,
>
> I am looking for a cell phone company that is capable of providing SIP
> service instead of sending the calls over the cellular network.
>
> If anybody here is capable of providing such a service or can recommend a
> vendor that can do that, please let me know.
>
> Thanks,
>
> Oren****
> _______________________________________________
> VoiceOps mailing list
> VoiceOps at voiceops.org
> https://puck.nether.net/mailman/listinfo/voiceops****
>
> ** **
>
>
> _______________________________________________
> VoiceOps mailing list
> VoiceOps at voiceops.org
> https://puck.nether.net/mailman/listinfo/voiceops****
>
>
> ****
> ** **
> --****
> Carlos Alvarez****
> TelEvolve****
> 602-889-3003****
> ** **
> ** **
> _______________________________________________
> VoiceOps mailing list
> VoiceOps at voiceops.org
> https://puck.nether.net/mailman/listinfo/voiceops
>
>
>


-- 
Carlos Alvarez
TelEvolve
602-889-3003
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