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Home > Archive > Voice Over IP in UK > November 2005 > Freetalk specific questions
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Freetalk specific questions
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| Endymion Ponsonby-Withermoor III 2005-11-20, 5:45 pm |
| I asked freetalk some specific questions, but they just
said "we'll call you back" and never did.
1. For incoming calls, is the Freetalk adaptor working as a server,
listening for incoming connexions ? Do I thus have to have a fixed IP
address ?
2. Can I make computer-to-computer calls (assuming both are Freetalk
subscribers) or do I have to use a third party (Freetalk) ?
3. Can you really connect a BT caller display device to its telephone
port and get meaningful CLI ?
4. Does the Freetalk adaptor use their proprietary protocols ?
Richard [in PE12]
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| On Sun, 20 Nov 2005 21:36:15 +0000, Endymion Ponsonby-Withermoor III
wrote:
>3. Can you really connect a BT caller display device to its telephone
>port and get meaningful CLI ?
Yes.
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"Endymion Ponsonby-Withermoor III" <a@a.false> wrote in message
news:1132522575.94adbbbf3c8519dbbfe97cf0991f7d0b@fe5.teranews.com...
>I asked freetalk some specific questions, but they just
> said "we'll call you back" and never did.
>
> 1. For incoming calls, is the Freetalk adaptor working as a server,
> listening for incoming connexions ? Do I thus have to have a fixed IP
> address ?
No need for a fixed IP address as far as I am aware. I do not have one and
it works fine
>
> 2. Can I make computer-to-computer calls (assuming both are Freetalk
> subscribers) or do I have to use a third party (Freetalk) ?
If both are Freetalk subscribers you can call using the phone number and the
call is free, why you wouldant to make pc to pc calls I do not know
>
> 3. Can you really connect a BT caller display device to its telephone
> port and get meaningful CLI ?
See other answer, not tried myself
>
> 4. Does the Freetalk adaptor use their proprietary protocols ?
>
Yup
> Richard [in PE12]
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| Martin² 2005-11-20, 8:45 pm |
| The whole point or a registrar is to keep track of who is using what IP.
You should be able to call any std. SIP device, without either of you being
registered with anybody, just by the router IP number.
Start with hash, replace . with * end with hash.
e.g. #123*45*67*89#
Haven't got a Freetalk, so I can't swear that it works with their service.
Regards,
Martin
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| Endymion Ponsonby-Withermoor III wrote:
> I asked freetalk some specific questions, but they just
> said "we'll call you back" and never did.
If they have said that to me and then did not, then I would not even
think about having anything to do with them.
> 1. For incoming calls, is the Freetalk adaptor working as a server,
> listening for incoming connexions ? Do I thus have to have a fixed IP
> address ?
>
> 2. Can I make computer-to-computer calls (assuming both are Freetalk
> subscribers) or do I have to use a third party (Freetalk) ?
>
> 3. Can you really connect a BT caller display device to its telephone
> port and get meaningful CLI ?
>
> 4. Does the Freetalk adaptor use their proprietary protocols ?
>
> Richard [in PE12]
>
>
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| On 2005-11-20, Deag <EAMJZIOJSQZV@spammotel.com> wrote:
>
> "Endymion Ponsonby-Withermoor III" <a@a.false> wrote in message
> news:1132522575.94adbbbf3c8519dbbfe97cf0991f7d0b@fe5.teranews.com...
> Yup
I thought the Freetalk service was SIP based. So shouldn't that be
'nope'?
Brian.
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| Ivor Jones 2005-11-21, 7:45 am |
|
"Martin²" <never@give.one> wrote in message
news:43812c42$0$1481$ed2619ec@ptn-nntp-reader01.plus.net
> The whole point or a registrar is to keep track of who is
> using what IP. You should be able to call any std. SIP
> device, without either of you being registered with
> anybody, just by the router IP number. Start with hash, replace . with *
> end with hash.
> e.g. #123*45*67*89#
> Haven't got a Freetalk, so I can't swear that it works
> with their service. Regards,
> Martin
What if (as is usually the case) the SIP device is on a private IP behind
a NAT router..? Mine is on 192.168.1.20 and has 2 phone ports, how would
you address the individual phones, if my public IP is dynamic and changes
every time I reboot (and sometimes more often, it seems to do it by itself
on occasion..!)
Ivor
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| Alan J. Flavell 2005-11-21, 7:45 am |
| On Mon, 21 Nov 2005, Ivor Jones wrote:
> What if (as is usually the case) the SIP device is on a private IP
> behind a NAT router..? Mine is on 192.168.1.20 and has 2 phone
> ports, how would you address the individual phones, if my public IP
> is dynamic and changes every time I reboot (and sometimes more
> often, it seems to do it by itself on occasion..!)
That's why SIP (analogously to H.323) has provision to "register" with
a server (in H.323 it's called a "gatekeeper"), which maintains a
permanent identity by which you can be called, even though your IP is
changing.
People wanting to call you, will call you by means of your identity at
the SIP server. The SIP server will then direct their client to your
currently registered public IP and appropriate port number (which your
NAT gateway will forward to the appropriate private IP address).
That's roughly how it works.
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| Ivor Jones 2005-11-21, 7:45 am |
|
"Alan J. Flavell" <flavell@ph.gla.ac.uk> wrote in message
news:Pine.LNX.4.62.0511211158260.26699@ppepc56.ph.gla.ac.uk
[snip]
> People wanting to call you, will call you by means of
> your identity at the SIP server. The SIP server will
> then direct their client to your currently registered
> public IP and appropriate port number (which your NAT
> gateway will forward to the appropriate private IP
> address).
>
> That's roughly how it works.
So how would I go about doing this..?
Ivor
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| Alan J. Flavell 2005-11-21, 5:45 pm |
| On Mon, 21 Nov 2005, Ivor Jones wrote:
>
> So how would I go about doing this..?
I can't speak specifically for Freetalk, but normally, when you sign
up with a SIP service, they give you some data to configure into your
SIP client, including their SIP service domain and your SIP number,
and the Internet address of their server.
You configure this into your SIP client, and then, when you
are running the client, it registers itself with their server,
and you can be called by anyone via your SIP "URI"
(sip_number@sip_service_domain), no matter what your IP happens
to be at the time, even behind a NAT gateway.
Google suggests
http://www.zyxel.com/support/suppor...SIP_Account.htm
showing these data being configured into a particular SIP client.
http://www.cs.columbia.edu/sip/ as a starting point for all kinds
of information.
hope that helps a bit.
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| On 2005-11-21, Ivor Jones <ivor@despammed.invalid> wrote:
>
> "Martin²" <never@give.one> wrote in message
> news:43812c42$0$1481$ed2619ec@ptn-nntp-reader01.plus.net
>
> What if (as is usually the case) the SIP device is on a private IP behind
> a NAT router..? Mine is on 192.168.1.20 and has 2 phone ports, how would
> you address the individual phones, if my public IP is dynamic and changes
> every time I reboot (and sometimes more often, it seems to do it by itself
> on occasion..!)
Two difficulties are presented here. The changing IP number and the
port numbers the SIP device listens on for incoming SIP signalling.
One solution might be for the recipient to put this information on a web
page.
What you say does not invalidate the point made but it does highlight
why a registrar is so useful in cases where an IP number changes or a
phone is on a port other than the standard one of 5060.
Brian.
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| Martin² 2005-11-21, 8:45 pm |
| Ivor Jones:
>What if (as is usually the case) the SIP device is on a private IP behind a
>NAT router..? Mine is on 192.168.1.20 and has 2 phone ports, how would you
>address the individual phones
Assuming that port 5060 is forwarded the IP of one of your phones, then it
*should* work,
but you may have to forward other ports associated with VoIP too.
As I need to do some testing anyway, I will call you (when I have bit of
time..), and we can try it out.
Regards,
Martin
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| Ivor Jones wrote:
> "Alan J. Flavell" <flavell@ph.gla.ac.uk> wrote in message
> news:Pine.LNX.4.62.0511211158260.26699@ppepc56.ph.gla.ac.uk
Forwarding ports over NAT effectively gives those ports on the machine
you've forwarded to a public IP address
[vbcol=seagreen]
>
> So how would I go about doing this..?
If you're using Sipgate, you're already doing it.
Alternatively you can register a DynDNS domain name, and run a piece of
software [which many routers have built in btw] that updates the DynDNS DNS
servers with your dynamic IP address every time it changes. You then run a
piece of software that listens on the SIP port [for example AAH, and I
guess many ATAs and hardphones do it too]. People can then dial you by
calling sip:ivor@eyevor.mine.nu [or whatever domain you pick].
Voila, you are your own telco. You may want people to call in from the PSTN
too, so in that case, you'd hang on to Sipgate.
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| Robert Cole 2005-11-25, 5:45 pm |
| you need to have at least £40 in your account for them to do a credit check
according to the email iv just received.
"AD C" <graphi47uk@y.a.h.o.o.co.uk> wrote in message
news:11o2vpk8voo7ge3@corp.supernews.com...
> Endymion Ponsonby-Withermoor III wrote:
>
>
> If they have said that to me and then did not, then I would not even think
> about having anything to do with them.
>
>
>
>
>
> ---
> avast! Antivirus: Outbound message clean.
> Virus Database (VPS): 0546-6, 20/11/2005
> Tested on: 21/11/2005 08:03:01
> avast! - copyright (c) 1988-2005 ALWIL Software.
> http://www.avast.com
>
>
>
>
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