[Asterisk-Users] VoIP over 1xRTT

Tue Oct 19 05:37:24 MST 2004

I didn't read this whole discussion but I've used the G729A codec
using X-Ten Pro on my laptop while connected to the 1xRTT network to
my Verizon phone via Bluetooth and it worked rather well.  (as long as
I had a full signal on my cell phone).  It's not something you can
call stable, or probably ever will be called stable but I was well
found it very cool that it did work.

On Tue, 19 Oct 2004 08:20:04 -0400, Deon Rodden <drodden at webunited.net> wrote:
> For the SIP client. I just can't imagine using a SIP client over a
> connection that has 250+ ms response times. If I make it go online to the
> 802.11 networks, I can use the SIP Client with ULaw and get high quality SIP
> calls at any hotspot. I wouldn't do this for every hot spot, but it'd be a
> nice feature to have for when I'm in other countries, or I'm in an area
> where Verizon has no coverage or their reception is terrible. Maybe even a
> supplement for when I'm running low on minutes.
> 
> When I'm at home, could use it like a Cordless phone. Work off my house
> line, which is tied in through my Asterisk server. To be honest, it's just a
> kewl feature and a neat thing to do with the phone, what can I say, I'm a
> geek like that, hehe.  The Verizon plan is coming from my work, so I don't
> want to put TOO many personal calls on it.
> 
> Even with the EVD Network (2nd stage rollout), the ping responses are going
> to be 250+ ms. Also, I don't think these phones support 2nd stage, only
> Stage 1, 1xRTT. I'd have to get a new phone or something.
> 
> As far as the laptop, there are times when I can do things easier from my
> laptop. Full sized keyboard, access to all my documents, etc. Right now I'm
> used to plugging my laptop into my Sprint phone. So whenever I want to do
> SSH or email, I have to use the laptop. Not used to having a PDA, nor one
> that can go online on the click of a button. You're probably right, with the
> PDA features, me needing to make my laptop go online through the phone will
> probably be 5-10% of what it used to be.
> 
> Which codec should be used for 250ms response times? G729A?
> 
> 
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Joe Dennick
> Sent: Tuesday, October 19, 2004 7:14 AM
> To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
> Subject: RE: [Asterisk-Users] VoIP over 1xRTT
> 
> I also have a Samsung i700 phone, and their newer i600 (Mobile Windows
> 2003), both through Verizon.  With both phones you can purchase
> unlimited Internet access for $79 per month.  Both phones are able to
> browse the Internet, send and receive email, and use the roll-up
> keyboard.  As such, I'm having a tough time understanding why you would
> want to use wireless (802.11?) to connect these things to your local
> network when the freedom comes from being able to use the build-in
> Internet Access.  Verizon plans to have their EVD Network throughout the
> US by the end of 2005 (it's currently only in Washington DC and San
> Diego.
> 
> I cannot understand why you would want to try to get your laptop to go
> online through the phone or vice-versa, the phones can do just about
> everything you would want to do online, so why bother trying to connect
> a laptop?  Many of our company's traveling executives travel with the
> i700 in order to keep up with email.  This keeps them from having to lug
> their laptops around and search out an Internet connection for them.
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Deon
> Rodden
> Sent: Monday, October 18, 2004 5:25 PM
> To: brian at bmit.net; 'Asterisk Users Mailing List - Non-Commercial
> Discussion'
> Subject: RE: [Asterisk-Users] VoIP over 1xRTT
> 
> My concern is Sprint would consider this a threat to their "Bread and
> Butter". Why buy one of their $100/mo plans for 2000 Anytime Minutes
> when you can get a $50/mo data plan and use an unlimited VOIP carrier.
> Why pay their overpriced International rates, when you can just go
> through a VOIP carrier.
> 
> With Verizon, I'm getting the Samsung i700 PDA phone. It runs Windows
> Mobile 2003, which is based off CE. I believe I found a SIP client for
> it. Using a wireless SD card in the SDIO slot it comes with, anytime I'm
> in range of a hotspot, I'll be able to go online and use the SIP client.
> Effectively turning my Cell phone into a wireless SIP phone when in
> range of a hot spot. Would be really nice when I'm in Australia. Also
> found an ssh client for it and a small roll out keyboard.
> 
> I know I can get my laptop to go online through this phone, but I wonder
> if the phone can go online through my laptop. If so, anytime my laptop
> has internet access, such as from Ethernet, the sip client on the
> pda-phone would work. Thus turning it into a usb phone. Hehe.
> 
> I love technology... Most of the time.
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Brian
> McSpadden
> Sent: Monday, October 18, 2004 5:45 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] VoIP over 1xRTT
> 
> It is not always the bandwidth, you are correct. There are however times
> on the Sprint network that the bandwidth is reduced, or the bandwidth is
> zero, because it can't connect to anything because the network is so
> busy. WIth Sprint's CDMA 1xRTT network, voice and data share the same
> network, but voice is the bread and butter of the business, so it will
> get priority over data.
> 
> This is why I'm saying, EV-DO (and later EV-DV) will do great things for
> VoIP over cellular networks. EV-DO (DO stands for Data Only), dedicates
> a high speed data network, more available bandwidth for everybody, and
> less latency, hence less jitter. I'm excited to see these developments,
> as I believe it will make VoIP more reliable over these types of
> networks. At the moment, there are simply too many variables to trust
> it.
> 
> Brian
> 
> On Mon, 18 Oct 2004 17:36:14 -0400, Deon Rodden <drodden at webunited.net>
> wrote:
> > It's not the bandwidth. I have Sprint and am switching to Verizon with
> 
> > a week. When I go online through my Sprint phone, I get 250+ms
> > response
> times.
> > That can not be VOIP friendly. I have clocked downloads at up to 130
> > kbits per second, so the speed is ok, but the ping response times are
> > bad.
> >
> > I've heard reports from Verizon users who get an average of 60-80
> > kbits
> per
> > second, so I 'feel' Sprint's network may be a little faster as their
> average
> > is higher, at least in my area. But Verizon is already doing the 2nd
> > stage rollout, which is nice and fast.
> >
> > But the latency issue will probably still be there, for Sprint or
> > Verizon.
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-- 
MBM