At present, I have this element of the dial plan to reach the PSTN line on a 
Linksys SPA 3102

|<9,:>x.<:@gw0>|

Dialling 9 gives the PSTN dial tone but it is a simulated one generated by 
the ATA.

I was wondering how to obtain the actual BT dial tone rather than the 
simulated one.

I've seen posts on the subject saying it can be done but without any detail 
as to what parameter or component of the dial plan is needed.

Incidentally, the simulated dial tone times out after 3 seconds as defined 
by the "Interdigit Short Timer" parameter but I don't want to extend this as 
it would delay sending of a dialled number.

Any comment would be much appreciated - Cheers from Mike.

Mike Sun pretended :
> At present, I have this element of the dial plan to reach the PSTN line on a 
> Linksys SPA 3102
>
> |<9,:>x.<:@gw0>|
>
> Dialling 9 gives the PSTN dial tone but it is a simulated one generated by 
> the ATA.
>
> I was wondering how to obtain the actual BT dial tone rather than the 
> simulated one.

Turn the power off.

>
> I've seen posts on the subject saying it can be done but without any detail 
> as to what parameter or component of the dial plan is needed.

I'm not sure it's possible.

Whilst the power is on, the Line 1 port & PSTN ports are distinctly 
separate. Only when the power is off & the internal relay trips is the 
phone connected to line 1 physically connected to the PSTN.

>
> Incidentally, the simulated dial tone times out after 3 seconds as defined by 
> the "Interdigit Short Timer" parameter but I don't want to extend this as it 
> would delay sending of a dialled number.
>
> Any comment would be much appreciated - Cheers from Mike.

On 01/12/2007 10:14, Jono wrote:

>> I was wondering how to obtain the actual BT dial tone rather than the 
>> simulated one.
> 
> Turn the power off.

That's true, you can tweak the tone generation to get one that *sounds* 
exactly like the BT dialtone if that helps.

Andy Burns wrote :
> On 01/12/2007 10:14, Jono wrote:
>
>>> I was wondering how to obtain the actual BT dial tone rather than the 
>>> simulated one.
>> 
>> Turn the power off.
>
> That's true, you can tweak the tone generation to get one that *sounds* 
> exactly like the BT dialtone if that helps.

Although I like the fact that I can tell exactly which "line" I'm 
dialling over from the sound of the dial tone.

Turning the power off certainly does the job but that's not so useful in all 
other respects I guess.

I have no problem getting the dial tone simulation to be like the real BT 
tone but my preference would be to be able to monitor what's going on with 
the "actual" line - say line is out of order or a BT message is missed (such 
as "please try again") or the BT howler tone if line is left off hook for 
too long, etc.

As you say, it may not be possible as there are 2 separate circuits involved 
but I thought I saw somewhere that it could be done...

Cheers from Mike

> That's true, you can tweak the tone generation to get one that
> *sounds* exactly like the BT dialtone if that helps.

Absolutely! You can find all that under the regional settings tab. A useful 
website to find the right settings:
http://www.3amsystems.com/wireline/tone-search.htm

You can choose any country you like :-)  At the bottom there is a conversion 
tool that translates all information into Sipura-settings:
http://www.3amsystems.com/wireline/tone-search.htm?start=0&kCountry=184&format=Sipura

Hope this helps,
Christian

Jono wrote:
> Mike Sun pretended :
>> At present, I have this element of the dial plan to reach the PSTN 
>> line on a Linksys SPA 3102
>>
>> |<9,:>x.<:@gw0>|
>>
>> Dialling 9 gives the PSTN dial tone but it is a simulated one 
>> generated by the ATA.
>>
>> I was wondering how to obtain the actual BT dial tone rather than the 
>> simulated one.
> 
> Turn the power off.
> 
>>
>> I've seen posts on the subject saying it can be done but without any 
>> detail as to what parameter or component of the dial plan is needed.
> 
> I'm not sure it's possible.
> 
> Whilst the power is on, the Line 1 port & PSTN ports are distinctly 
> separate. Only when the power is off & the internal relay trips is the 
> phone connected to line 1 physically connected to the PSTN.
> 
>>
>> Incidentally, the simulated dial tone times out after 3 seconds as 
>> defined by the "Interdigit Short Timer" parameter but I don't want to 
>> extend this as it would delay sending of a dialled number.
>>
>> Any comment would be much appreciated - Cheers from Mike.
> 
> 

It is possible.  It's a good while since I did it but I believe the dial 
plan is something like:

<9:>S0<:@gw0>

Then on the PSTN Line page you need to change the default dial plan for 
the VoIP-PSTN Gateway to "none".  The setting is called "Line 1 VoIP 
Caller DP" if I remember correctly.

I originally worked this out for a customer who was connecting SPA3000s 
to PBXs and wrote this document which might help you even more:

http://www.provu.co.uk/pdf/sipura/pbx_extension_setup.pdf

cheers,
Paul.

-- 
Working Email:

paul-at-polog40-dot-co-dot-uk

"Paul Hayes"  wrote in message 
news:47552934$0$513$5a6aecb4@news.aaisp.net.uk...
>
> It is possible.  It's a good while since I did it but I believe the dial 
> plan is something like:
>
> <9:>S0<:@gw0>
>
> Then on the PSTN Line page you need to change the default dial plan for 
> the VoIP-PSTN Gateway to "none".  The setting is called "Line 1 VoIP 
> Caller DP" if I remember correctly.
>
Paul - your advice worked perfectly - many thanks for that. The only 
drawbacks I notice with this setup is that:-

1. A pause would now be needed between the 9 and the phone number if one 
wants to dial out via PSTN from line 1.

2. PSTN line may not clear down upon hang-up of line 1 - the remote caller 
would need to hang up (but this may be correct behaviour anyway for an 
incoming call).

Anyway, it's nice to know that one has the option to configure this way or 
the standard way.

Cheers from Mike

Paul Hayes wrote :
> Jono wrote:
>> Mike Sun pretended :
>>> At present, I have this element of the dial plan to reach the PSTN line on 
>>> a Linksys SPA 3102
>>>
>>> |<9,:>x.<:@gw0>|
>>>
>>> Dialling 9 gives the PSTN dial tone but it is a simulated one generated by 
>>> the ATA.
>>>
>>> I was wondering how to obtain the actual BT dial tone rather than the 
>>> simulated one.
>> 
>> Turn the power off.
>> 
>>>
>>> I've seen posts on the subject saying it can be done but without any 
>>> detail as to what parameter or component of the dial plan is needed.
>> 
>> I'm not sure it's possible.
>> 
>> Whilst the power is on, the Line 1 port & PSTN ports are distinctly 
>> separate. Only when the power is off & the internal relay trips is the 
>> phone connected to line 1 physically connected to the PSTN.
>> 
>>>
>>> Incidentally, the simulated dial tone times out after 3 seconds as defined 
>>> by the "Interdigit Short Timer" parameter but I don't want to extend this 
>>> as it would delay sending of a dialled number.
>>>
>>> Any comment would be much appreciated - Cheers from Mike.
>> 
>> 
>
> It is possible.  It's a good while since I did it but I believe the dial plan 
> is something like:
>
> <9:>S0<:@gw0>
>
> Then on the PSTN Line page you need to change the default dial plan for the 
> VoIP-PSTN Gateway to "none".  The setting is called "Line 1 VoIP Caller DP" 
> if I remember correctly.
>
> I originally worked this out for a customer who was connecting SPA3000s to 
> PBXs and wrote this document which might help you even more:
>
> http://www.provu.co.uk/pdf/sipura/pbx_extension_setup.pdf

Excellent.

Learn something new every day!