[BSalita]

DockNTalk method is very clever. However, you are adding the pain of going over a 2nd mobile connection at the DockNTalk site. This method only makes sense if the DockNTalk site is cellularly reliable.

[jpeisen]

Originally Posted by mberlant

If you coordinate well with T-Mobile you can get a free phone from them that integrates with the Dock-n-Talk.

Even better, if you can get your whole family to move from Slovakia to Czech Republic you can pay $5 more per month for unlimited calling.

I don't know your situation at all, but in theory if the people you're calling in Slovakia are few & have broadband service, you could buy them ATAs and set them up with FWD accounts. Then your calls to Slovakia would be "free" (in quotes because broadband charges apply).

You could do the same with BroadVoice/Vonage/etc accounts, but I don't see the sense of paying for making only in-network calls when FWD is around. Now if they have a need to call other US numbers, then BV/Vonage/etc. would make sense.

-John

[sk3-420]

Originally Posted by sk3-420

How do you make a call from B2T to an FWD number when B2T is a push to talk service if, say,my FWD phone is behind a sipura since there is no dialpad on B2T?Also,if I register a DID to the B2T,will it ring like a regular phone on the B2T?Thx for your help,Bernie. :?

Hi djkeit,
I found this on Buzz2talk's website under FAQ "Can I use Buzz2Talk to talk to PC clients ?

The Buzz2Talk Client currently only supports push to talk sessions between Buzz2Talk clients. You will not be able to use Buzz2Talk for push to talk conversations with other SIP enabled PC applications like X-Lite or other SIP Soft Phones." I'm wondering wether you have actually used it to call a non buzz2talk client and,if so,how did you configure it to work? Thx again, Bernie. :? :?

[djkeit]

Nope, I haven't.

I got those info in another usergroup/forum and I was actually going to buy a Nokia phone myself, just to try their service.

In my opinion that is just a limitation of the software. I mean, they set it to behave in such a way but should they decide to change this, it could actually work just like a Sip client.

The buzz2talk client has been sponsored by ATT and I guess they didnt want a real client running on their customers' cellphones so they they could bypass voice fees with VoIP over GPRS, right?

Anyway, I was wrong and gave you a wrong advice. I am sorry.

[sk3-420]

Thanks for the clarification.No harm intended,and no harm done,It would however be a great idea and I'm sure would be very possible.I think FWD are working on just such a thing with their mobile communicator,which I think is in Beta testing at http://www.pulver.com/fwd/beta-signup.html Thanks,Bernie.

[ii904]

could someone can upload buzz2talk.sis file ,buzz2talk.com can't download anymore.

[mayoor]

I would be using the dock n talk to connect to asterisk and only give my home # to frined and family that call me on cell and can reduce for 1500 minutes to 400-600 minutes and reduce my t-mobile by $30 a month and all call to me go from pstn/voip to my cell phone for free using family talk plan. I am not sure FWD can used using gprs I have tried using that on my notebook I have unlimited internet on my cell and ping time is far too high.

[mberlant]

The problem with VoIP over T-Mobile's GPRS is not latency. You can have hundreds of milliseconds of latency and still have clear calls. In fact, I don't have a service connection under 200ms and virtually all of my calls are clear.

What gets you in trouble with T-Mobile GPRS is the connection speed. Last I checked, T-Mobile was advertising 56kbps service with a caveat that said 48kbps was typical. 48kbps (or 56kbps, for that matter) is far short of the 80kbps necessary to support a G.711 conversation. In order to use anything else you must use a compressing CODEC, balancing these four factors.

- The CODEC must require less than 40kbps. Don't expect T-Mobile to reach their marketing hype.
- The CODEC must be supported by your VoIP service provider (your Asterisk?).
- The CODEC must be supported by your softphone client software.
- The CODEC must not require more processing power of your cell phone than it has.

[PhoneBoy]

T-Mobile's GPRS latency is on the order of 2000-3000ms, which means even if you can overcome the constricted bandwidth, you're going to have issues having a real-time conversation without saying "over" a lot.

[rudholm]

I'm going to agree that latency is a big issue. I use both GPRS (in the US and various other countries) and (Verizon's) EVDO, and used to use Sprint PCS Vision and they all have awful latency (1 second minimum in my experience) and sport a tendency to drop connections. EVDO is fast if you're downloading (I get about 350kbps) but for things that require low latency, like an ssh session, it's terribly frustrating. There is a SIP client for one of my EVDO phones, but I haven't bothered because I'm pretty sure it will be unsatisfactory.