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  #1 (permalink)  
Old 05-21-2010, 10:50 PM
Theo Markettos
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Default Voice calls from USB dongle?

Are there any USB dongles that are capable of making GSM calls?

The reason I ask is I was recently using a Huawei B220 router. This looks
like it's a wireless router with an E220 USB dongle built into it... there's
a USB port you can use to plug it into a PC and if you do it appears just
like an E220 (even the E220 unlock method works). But the router also has a
phone socket on the back, which you can use to make and receive calls using
the dongle's mobile SIM (GSM calls, not VOIP).

So it looks like the E220 is capable of making calls... but how do you
achieve this? I didn't take the router apart, but I assume there must be
some kind of connection to the dongle for the audio and some PSTN
components.

Is there some kind of interface for doing this on any dongles, either in
hardware or software?

Theo

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  #2 (permalink)  
Old 05-22-2010, 02:40 AM
Steve Terry
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Default Re: Voice calls from USB dongle?

"Theo Markettos" <theom+news@chiark.greenend.org.uk> wrote in message
news:W5t*caC-s@news.chiark.greenend.org.uk...
> Are there any USB dongles that are capable of making GSM calls?
>
>

Yes, they are called tethered data phones.

I'm using a tethered S2 on Three network to send this from my laptop

Steve Terry
--
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  #3 (permalink)  
Old 05-22-2010, 07:38 PM
R. Mark Clayton
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Default Re: Voice calls from USB dongle?


"Theo Markettos" <theom+news@chiark.greenend.org.uk> wrote in message
news:W5t*caC-s@news.chiark.greenend.org.uk...
> Are there any USB dongles that are capable of making GSM calls?
>
> The reason I ask is I was recently using a Huawei B220 router. This looks
> like it's a wireless router with an E220 USB dongle built into it...
> there's
> a USB port you can use to plug it into a PC and if you do it appears just
> like an E220 (even the E220 unlock method works). But the router also has
> a
> phone socket on the back, which you can use to make and receive calls
> using
> the dongle's mobile SIM (GSM calls, not VOIP).
>
> So it looks like the E220 is capable of making calls... but how do you
> achieve this? I didn't take the router apart, but I assume there must be
> some kind of connection to the dongle for the audio and some PSTN
> components.
>
> Is there some kind of interface for doing this on any dongles, either in
> hardware or software?
>
> Theo


Of course - it is just net data. Depending on your T&C your SP might cut
you off for running voice (VOIP / SIP) traffic.

QoS of Voip over 3G is poor (but bearable otherwise 3 would not be promoting
Skype).



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  #4 (permalink)  
Old 05-23-2010, 12:22 AM
Theo Markettos
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Default Re: Voice calls from USB dongle?

Steve Terry <gfourwwk@tesco.net> wrote:
> "Theo Markettos" <theom+news@chiark.greenend.org.uk> wrote in message
> news:W5t*caC-s@news.chiark.greenend.org.uk...
> > Are there any USB dongles that are capable of making GSM calls?
> >

> Yes, they are called tethered data phones.


OK... and can they make voice calls[*] initiated from the PC? With the audio
fed to/from the PC?

There's a Bluetooth interface to Asterisk, so I suppose it's possible.

My interest is for Android x86, where you run it on a PC. Obviously voice
calling doesn't work[+], because there's no radio. The driver stack shows a
pathway for voice traffic which completely bypasses the usual data route
(Linux kernel PPP, TCP/IP stack). So I wondered if there was a common
interface for making voice calls, and what hardware might use it? Can you
buy this hardware for a PC, or do you have to be a mobile phone to have it?
Does it already exist on USB dongles, which after all already have much of
the baseband functionality?

I'm not sure if Android can use another phone over Bluetooth for calling...
after all, Android's intended for running on the device with the GSM radio
not on a headset.

Theo
[*] GSM voice calls, VOIP doesn't count
[+] There's a SIP client, Sipdroid, that might implement VOIP calling a
level low enough to provide a calling pathway for testing, but it doesn't
work on Android x86

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  #5 (permalink)  
Old 05-23-2010, 12:29 PM
R. Mark Clayton
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Default Re: Voice calls from USB dongle?


"Peter" <occassionally-confused@nospam.co.uk> wrote in message
news:10cgv5lb06tuo2qjve4sv3doj435oupchr@4ax.com...
>
> "R. Mark Clayton" <nospamclayton@btinternet.com> wrote
>
>>QoS of Voip over 3G is poor (but bearable otherwise 3 would not be
>>promoting
>>Skype).

>
> I have never tried this but does it ever make economic sense to run
> VOIP over 3G ?


Yes - if your contract or data add on is large or unlimited then there is no
marginal cost for Voip over 3G.

Usually such contracts have a large inclusive call allowance, however the
big gains will be made in the following circumstances: -

1. Calls from UK to international.
Such calls are rarely bundled and usually very expensive.

2. Calls to SIP.
Essentially free.

>
> I can see it may make sense to do it within some kind of a free data
> allowance, which exists only on contracts anyway, and on contracts you
> tend to get a free call allowance. You would have to be pretty on the
> ball on the data usage, using VOIP only up to the data allowance, and
> how easy is it to keep tabs on the data allowance *as measured by the
> network* (not as measured by the dial-up software) ?


A BT inclusive 3G dongle includes 1Gb a month. Even at full ISDN rates both
ways that is over two hours talking. In reality it will be a lot more than
that.



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  #6 (permalink)  
Old 05-23-2010, 04:01 PM
curon
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Default Re: Voice calls from USB dongle?

> QoS of Voip over 3G is poor (but bearable otherwise 3 would not be promoting
> Skype).


Skype from a Three handset does not use VOIP over the data aspect of
the 3G network. The skype client is customised to make a phone call to
a dedicated number provided by Three, effectively a proxy.

Curon

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  #7 (permalink)  
Old 05-23-2010, 05:27 PM
R. Mark Clayton
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Default Re: Voice calls from USB dongle?


"curon" <curond@gmail.com> wrote in message
news:65c11d4a-1af5-4d53-af9f-30a6f73f2b92@p17g2000vbe.googlegroups.com...
>> QoS of Voip over 3G is poor (but bearable otherwise 3 would not be
>> promoting
>> Skype).

>
> Skype from a Three handset does not use VOIP over the data aspect of
> the 3G network. The skype client is customised to make a phone call to
> a dedicated number provided by Three, effectively a proxy.
>
> Curon


Sneaky - you got a link for this?



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  #8 (permalink)  
Old 05-23-2010, 06:20 PM
jonphred
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Default Re: Voice calls from USB dongle?

On Sun, 23 May 2010 17:27:11 +0100, R. Mark Clayton
<nospamclayton@btinternet.com> wrote:

>
> "curon" <curond@gmail.com> wrote in message
> news:65c11d4a-1af5-4d53-af9f-30a6f73f2b92@p17g2000vbe.googlegroups.com...
>>> QoS of Voip over 3G is poor (but bearable otherwise 3 would not be
>>> promoting
>>> Skype).

>>
>> Skype from a Three handset does not use VOIP over the data aspect of
>> the 3G network. The skype client is customised to make a phone call to
>> a dedicated number provided by Three, effectively a proxy.
>>
>> Curon

>
> Sneaky - you got a link for this?
>
>

I can confirm. I live miles from any 3G coverage but can use Skype on my
S2 handset. The call register on the phone reports an 07838 333nnn number
for incoming calls described as "IM call".

The delay when talking to another S2 user (just for testing purposes as
one would normally use 3-to-3 calls) can be disconcerting.

--
JonPhred

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  #9 (permalink)  
Old 05-23-2010, 08:12 PM
Theo Markettos
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Default Re: Voice calls from USB dongle?

R. Mark Clayton <nospamclayton@btinternet.com> wrote:
>
> "curon" <curond@gmail.com> wrote in message
> > Skype from a Three handset does not use VOIP over the data aspect of
> > the 3G network. The skype client is customised to make a phone call to
> > a dedicated number provided by Three, effectively a proxy.

>
> Sneaky - you got a link for this?


I wrote all about it in <news:6cn*lqs+s@news.chiark.greenend.org.uk>. Since
Google is being broken and not finding that, you can also find it here:

http://www.markettos.org.uk/telecoms...ype-iskoot.txt

(what I don't mention is the basics... essentially the client uses the data
channel to tell the Three/iSkoot server what to do with the other end of the
call, then initiates a GSM voice call to a number supplied in the packet
exchange. I now have iSkoot working on Android x86 but, having no radio, I
don't have a voice channel for it to call out. Which happened to be the
whole motivation for this thread

Theo

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  #10 (permalink)  
Old 05-23-2010, 08:14 PM
R. Mark Clayton
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Posts: n/a
Default Re: Voice calls from USB dongle?


"jonphred" <junkman@gmx.co.uk> wrote in message
newsp.vc544bora3wce4@silverdell...
> On Sun, 23 May 2010 17:27:11 +0100, R. Mark Clayton
> <nospamclayton@btinternet.com> wrote:
>
>>
>> "curon" <curond@gmail.com> wrote in message
>> news:65c11d4a-1af5-4d53-af9f-30a6f73f2b92@p17g2000vbe.googlegroups.com...
>>>> QoS of Voip over 3G is poor (but bearable otherwise 3 would not be
>>>> promoting
>>>> Skype).
>>>
>>> Skype from a Three handset does not use VOIP over the data aspect of
>>> the 3G network. The skype client is customised to make a phone call to
>>> a dedicated number provided by Three, effectively a proxy.
>>>
>>> Curon

>>
>> Sneaky - you got a link for this?
>>
>>

> I can confirm. I live miles from any 3G coverage but can use Skype on my
> S2 handset. The call register on the phone reports an 07838 333nnn number
> for incoming calls described as "IM call".
>
> The delay when talking to another S2 user (just for testing purposes as
> one would normally use 3-to-3 calls) can be disconcerting.
>
> --
> JonPhred


Vulnerable to cut off then...



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  #11 (permalink)  
Old 05-23-2010, 08:32 PM
Gordon Henderson
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Posts: n/a
Default Re: Voice calls from USB dongle?

In article <10cgv5lb06tuo2qjve4sv3doj435oupchr@4ax.com>,
Peter <occassionally-confused@nospam.co.uk> wrote:
>
>"R. Mark Clayton" <nospamclayton@btinternet.com> wrote
>
>>QoS of Voip over 3G is poor (but bearable otherwise 3 would not be promoting
>>Skype).

>
>I have never tried this but does it ever make economic sense to run
>VOIP over 3G ?


I have a client who's currently doing this - 3G dongle in the back of
their router and they're making SIP calls to/from it. Seems to work OK
for them.

They're doing it for a month or 2 as a temporary measure before they
move premises - to save the hassle of getting in a BT line, ADSL, etc.

And I now occasionally make/take VoIP calls via 3G - sometimes take
calls without knowing it when I'm away from home. (N900 phone - O2
"unlimited data" SIMplicity thingy) It's caused some confusion when I've
answered my home phone on my mobile and I'm no-where near home!

>I can see it may make sense to do it within some kind of a free data
>allowance, which exists only on contracts anyway, and on contracts you
>tend to get a free call allowance. You would have to be pretty on the
>ball on the data usage, using VOIP only up to the data allowance, and
>how easy is it to keep tabs on the data allowance *as measured by the
>network* (not as measured by the dial-up software) ?


VoIP is pretty low data usage - for the most part lower than web browsing,
but web browsing can be cached etc....

Gordon

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  #12 (permalink)  
Old 05-24-2010, 08:20 AM
Steve Terry
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Posts: n/a
Default Re: Voice calls from USB dongle?

"R. Mark Clayton" <nospamclayton@btinternet.com> wrote in message
news:1pOdnfV3AKX_42TWnZ2dnUVZ8kadnZ2d@bt.com...
> "jonphred" <junkman@gmx.co.uk> wrote in message
> newsp.vc544bora3wce4@silverdell...
>> On Sun, 23 May 2010 17:27:11 +0100, R. Mark Clayton
>> <nospamclayton@btinternet.com> wrote:
>>> "curon" <curond@gmail.com> wrote in message
>>> news:65c11d4a-1af5-4d53-af9f-30a6f73f2b92@p17g2000vbe.googlegroups.com...

<snip>
>> I can confirm. I live miles from any 3G coverage but can use Skype on my
>> S2 handset. The call register on the phone reports an 07838 333nnn number
>> for incoming calls described as "IM call".
>>
>> The delay when talking to another S2 user (just for testing purposes as
>> one would normally use 3-to-3 calls) can be disconcerting.
>> JonPhred

>
>

The delay on free ring2skype is as bad, but allowing people to call
your Skype mobile at landline rate which could be inclusive for
them from a BT line makes it liveable

Also ring2skype for a change has been reliable for the last month
http://www.ring2skype.com/

and with a 0161 and 0208 option you can convince people you are in
Manchester or London

Steve Terry
--
Welcome Sign-up Bonus of 1 when you signup free at:
http://www.topcashback.co.uk/ref/G4WWK



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  #13 (permalink)  
Old 05-24-2010, 12:24 PM
jonphred
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Posts: n/a
Default Re: Voice calls from USB dongle?

On Sun, 23 May 2010 20:14:10 +0100, R. Mark Clayton
<nospamclayton@btinternet.com> wrote:

>
> "jonphred" <junkman@gmx.co.uk> wrote in message

<snip>
>>>

>> I can confirm. I live miles from any 3G coverage but can use Skype on my
>> S2 handset. The call register on the phone reports an 07838 333nnn
>> number
>> for incoming calls described as "IM call".
>>
>> The delay when talking to another S2 user (just for testing purposes as
>> one would normally use 3-to-3 calls) can be disconcerting.
>>
>> --
>> JonPhred

>
> Vulnerable to cut off then...
>
>

I'm not at all clear what you mean by this. Would you clarify?

--
JonPhred

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  #14 (permalink)  
Old 05-24-2010, 12:38 PM
Steve Hayes
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Posts: n/a
Default Re: Voice calls from USB dongle?

Theo Markettos wrote:

> Are there any USB dongles that are capable of making GSM calls?
>
> The reason I ask is I was recently using a Huawei B220 router. This looks
> like it's a wireless router with an E220 USB dongle built into it...
> there's a USB port you can use to plug it into a PC and if you do it
> appears just
> like an E220 (even the E220 unlock method works). But the router also has
> a phone socket on the back, which you can use to make and receive calls
> using the dongle's mobile SIM (GSM calls, not VOIP).
>
> So it looks like the E220 is capable of making calls... but how do you
> achieve this? I didn't take the router apart, but I assume there must be
> some kind of connection to the dongle for the audio and some PSTN
> components.
>
> Is there some kind of interface for doing this on any dongles, either in
> hardware or software?
>
> Theo


I had a T-Mobile dongle and noticed that the Windows software that comes
with it (which is a monster to install) included the ability to make and
receive voice calls on the PC (e.g. with a USB handset). Terms and
conditions forbid VOIP (and testing showed it's blocked) and my
understanding was that these calls went as normal mobile network calls. The
data sim certainly worked to make and receive calls when I put it in a phone
but the charges were quite high.

Never actually used the function on the PC but there is obviously a way that
the PC can interface with the dongle to access the mobile voice network and
this will be what the router is using too. It could be handy if your plan
includes voice minutes at a decent rate but, so far as I can see, the
general pattern is that you must choose between a data SIM where we gouge
you on voice or a voice SIM where we gouge you on data (unless it's data on
an untethered phone). One day I expect they'll get more flexible.

--
Steve Hayes, South Wales, UK
----Remove colours from reply address----

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  #15 (permalink)  
Old 05-24-2010, 01:53 PM
Theo Markettos
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Default Re: Voice calls from USB dongle?

Steve Hayes <steve@red.honeylink.blue.co.uk> wrote:
> I had a T-Mobile dongle and noticed that the Windows software that comes
> with it (which is a monster to install) included the ability to make and
> receive voice calls on the PC (e.g. with a USB handset). Terms and
> conditions forbid VOIP (and testing showed it's blocked) and my
> understanding was that these calls went as normal mobile network calls.
> The data sim certainly worked to make and receive calls when I put it in a
> phone but the charges were quite high.


Interesting... do you happen to know if that's specific T-Mobile software,
or generic firmware (written by eg Huawei or ZTE) with T-Mobile branding.
T-Mobile have networks in other countries, so it's possible VOIP is allowed
in those, but it seems unlikely to actively support it.

What model is the dongle?

Theo

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  #16 (permalink)  
Old 07-03-2010, 11:48 AM
Thomas Kenyon
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Default Re: Voice calls from USB dongle?

On 24/5/10 13:53, Theo Markettos wrote:
> Steve Hayes<steve@red.honeylink.blue.co.uk> wrote:
>> I had a T-Mobile dongle and noticed that the Windows software that comes
>> with it (which is a monster to install) included the ability to make and
>> receive voice calls on the PC (e.g. with a USB handset). Terms and
>> conditions forbid VOIP (and testing showed it's blocked) and my
>> understanding was that these calls went as normal mobile network calls.
>> The data sim certainly worked to make and receive calls when I put it in a
>> phone but the charges were quite high.

>
> Interesting... do you happen to know if that's specific T-Mobile software,
> or generic firmware (written by eg Huawei or ZTE) with T-Mobile branding.
> T-Mobile have networks in other countries, so it's possible VOIP is allowed
> in those, but it seems unlikely to actively support it.
>
> What model is the dongle?
>
> Theo


If you install the generic version of the software (and it's unlocked to
do it, which it appears to be with all providers except 3), the E169 /
K3520 can make voice calls directly.

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  #17 (permalink)  
Old 07-03-2010, 11:55 AM
Thomas Kenyon
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Posts: n/a
Default Re: Voice calls from USB dongle?

On 23/5/10 00:22, Theo Markettos wrote:
> Steve Terry<gfourwwk@tesco.net> wrote:
>> "Theo Markettos"<theom+news@chiark.greenend.org.uk> wrote in message
>> news:W5t*caC-s@news.chiark.greenend.org.uk...
>>> Are there any USB dongles that are capable of making GSM calls?
>>>

>> Yes, they are called tethered data phones.

>
> OK... and can they make voice calls[*] initiated from the PC? With the audio
> fed to/from the PC?
>
> There's a Bluetooth interface to Asterisk, so I suppose it's possible.
>

Someone also wrote a strange cable channel driver for asterisk (not with
the main distribution), and someone else wrote a dongle driver.

None of these are very reliable though ime.

Although I use chan_sebi to allow me to text commands to my server at
home if it's internet connection is down.


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  #18 (permalink)  
Old 07-24-2010, 12:18 PM
gracey
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Posts: n/a
Default Re: Voice calls from USB dongle?


The newer Huawei dongles are capable of making GSM calls. But you will
use a PC or your laptop for the audio and speaker. I think what you have
there can be use with out a computer. Why don't you try to connect a
regular phone in the phone line socket and see what happens.


--
gracey
Message origin: TRAVEL.com


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