What codecs are you using? You should be able to get quite a few speex
channels or even a load of 729 or gsm channels down your 256K.
Mark
WipeOut said:
Simon Coles wrote:
--On Tuesday, March 2, 2004 9:49 am + Steve Kennedy
[EMAIL PROTECTED] wrote:
That's the crunch (1.5/512) ...
Mark Phillips wrote:
What codecs are you using? You should be able to get quite a few speex
channels or even a load of 729 or gsm channels down your 256K.
Mark
You always have to remember that a UK ADSL line has a contention ratio
of 20:1 if you have business ADSL or 50:1 if you have the
On Wed, Mar 10, 2004 at 08:41:00PM +, Michael T Farnworth wrote:
Mark Phillips wrote:
What codecs are you using? You should be able to get quite a few speex
channels or even a load of 729 or gsm channels down your 256K.
You always have to remember that a UK ADSL line has a contention
Steve Kennedy wrote:
It't not quite that simple, DSL in the UK is PPPoATM, so you need to
take into account who IP is encoded at the ATM layer etc. If you're
using a reasonable bit rate codec, you can't really expect to get much
more than 1 voice channel out of an ADSL service (assume something
On Wed, Mar 10, 2004 at 04:40:38PM -0500, John Fraizer wrote:
Steve Kennedy wrote:
It't not quite that simple, DSL in the UK is PPPoATM, so you need to
take into account who IP is encoded at the ATM layer etc. If you're
using a reasonable bit rate codec, you can't really expect to get much
On Tue, 2004-03-09 at 08:36, WipeOut wrote:
Simon Coles wrote:
--On Tuesday, March 2, 2004 9:49 am + Steve Kennedy
[EMAIL PROTECTED] wrote:
That's the crunch (1.5/512) ... it's actually the 512 which is relevent.
We haven't set it all up yet, but for our new UK office we've
: [Asterisk-Users] Small office requirements - Can this be
done?
On Tue, 2004-03-09 at 08:36, WipeOut wrote:
Simon Coles wrote:
--On Tuesday, March 2, 2004 9:49 am + Steve Kennedy
[EMAIL PROTECTED] wrote:
That's the crunch (1.5/512) ... it's actually the 512 which is
relevent.
We
--On Tuesday, March 2, 2004 9:49 am + Steve Kennedy
[EMAIL PROTECTED] wrote:
That's the crunch (1.5/512) ... it's actually the 512 which is relevent.
Virtually all DSL in the UK is a wholesale product from BT (they have
about 2 million customers, Easynet who local loop unbundle may have
Simon Coles wrote:
--On Tuesday, March 2, 2004 9:49 am + Steve Kennedy
[EMAIL PROTECTED] wrote:
That's the crunch (1.5/512) ... it's actually the 512 which is relevent.
Virtually all DSL in the UK is a wholesale product from BT (they have
about 2 million customers, Easynet who local loop
Steve Kennedy wrote:
On Mon, Mar 01, 2004 at 08:10:11PM -, Senad Jordanovic wrote:
Steve Kennedy wrote:
On Mon, Mar 01, 2004 at 06:23:08PM -, Senad Jordanovic wrote:
You could port your numbers to a licenced telco... Install SDSL (or
even ADSL if you have a lot of faith in your
On Mon, Mar 01, 2004 at 07:08:29PM -0600, Michael Graves wrote:
I have disagree about the ADSL. I have a1.5 Mbit/512kbit service from
Covad (in the US Southwest) and I have sustained 4 calls without a
problem. I prefer to use GSM over G.711to squeeze it down, but that is
my choice. I don't
We do 4 per adsl with gsm every day.
Matt
- Original Message -
From: WipeOut [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, March 02, 2004 11:04 PM
Subject: Re: [Asterisk-Users] Small office requirements - Can this be done?
| Steve Kennedy wrote:
|
| On Mon, Mar 01, 2004 at 07
Matt Riddell wrote:
We do 4 per adsl with gsm every day.
Who is your ADSL provider?
___
Asterisk-Users mailing list
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To UNSUBSCRIBE or update options visit:
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Sent: Tuesday, March 02, 2004 11:04 PM
Subject: Re: [Asterisk-Users] Small office requirements - Can this be done?
| Steve Kennedy wrote:
|
| On Mon, Mar 01, 2004 at 07:08:29PM -0600, Michael Graves wrote:
|
|
|
| I have disagree about the ADSL. I have a1.5 Mbit/512kbit service from
| Covad
I've done a fare amount of analysis on codec bandwidth requirements and you should
remember that you typically will require more bandwidth over ADSL than you would over
any other technology. I estimate a requirement of around 108Kb (on the wire) per G.711
channel rather than 86kb over straight
Telecom (In New Zealand)
:-)
Matt
- Original Message -
From: Senad Jordanovic [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, March 02, 2004 11:17 PM
Subject: RE: [Asterisk-Users] Small office requirements - Can this be done?
| Matt Riddell wrote:
| We do 4 per adsl with gsm
Low, Adam wrote:
I've done a fare amount of analysis on codec bandwidth requirements and you should remember that you typically will require more bandwidth over ADSL than you would over any other technology. I estimate a requirement of around 108Kb (on the wire) per G.711 channel rather than 86kb
So for us Dummies out here :) who just know it works.
Yep, it sure does, I thought it was something people might find interesting. Its
certainly been a challenging subject for me to try and provide reliable and high
quality voice service over ADSL. In my experience it seems to depend a hell of
On Tue, Mar 02, 2004 at 10:04:23AM +, WipeOut wrote:
On the UK DSL using G.711 you should easily get 2 concurrect calls,
G.711 uses about 84k(incl overhead) in each direction, so 2 calls would
be 168K (of the 256k)
It all to do with running IP/ATM (BT's ADSL is all over ATM) and how the
On Tue, Mar 02, 2004 at 10:40:25AM +, WipeOut wrote:
Like I said you should be able to easily do 6 when using GSM..
I have done 2 concurrent iLBC through IAX calls over a 64k ISDN link.. :)
ISDN is a 64K symmetrical system, ADSL is assymmetrical ... that's where
the problems occur, and
David Uzzell wrote:
So for us Dummies out here :) who just know it works.
This would mean that if you had a 512/256 aDSL and a 256 ISDN connection
you would be able to have more channels over the ISDN?
David
It all depends on what excapsulation your aDSL uses. It boils down to
encapsulation
Although there have also been times that with 2 concurrent calls we get dropped
packets
- Original Message -
From: Matt Riddell [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, March 03, 2004 12:09 AM
Subject: Re: [Asterisk-Users] Small office requirements - Can this be done
I have 5 BT phone lines coming into my office. We
use four for international calls, and one for local/mobile calls. We have just
obtained another call carrier, and now we would like to be able to make calls
from any phone to any carrier, without having to remember what details to tap
into
Angel Gabriel wrote:
I have 5 BT phone lines coming into my office. We use four for
international calls, and one for local/mobile calls. We have just
obtained another call carrier, and now we would like to be able to
make calls from any phone to any carrier, without having to remember
what
At 08:51 AM 3/1/2004, you wrote:
I have 5
BT phone lines coming into my office. We use four for international
calls, and one for local/mobile calls. We have just obtained another call
carrier, and now we would like to be able to make calls from any phone to
any carrier, without having to
Angel Gabriel wrote:
I have 5 BT phone lines coming into my office. We use four for
international calls, and one for local/mobile calls. We have just
obtained another call carrier, and now we would like to be able to
make calls from any phone to any carrier, without having to remember
what
Angel Gabriel said:
I have 5 BT phone lines coming into my office. We use four for
international calls, and one for local/mobile calls. We have just obtained
another call carrier, and now we would like to be able to make calls from
any phone to any carrier, without having to remember what
- Original Message -
From: NetOne Administrator [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, March 01, 2004 5:25 PM
Subject: Re: [Asterisk-Users] Small office requirements - Can this be done?
Angel Gabriel wrote:
I have 5 BT phone lines coming into my office. We use four
On Mon, Mar 01, 2004 at 05:32:34PM +, WipeOut wrote:
Currently connecting more than 3 analog lines to asterisk can be
problematic unless you get hold of a channelbank (not that availible in
the UK)..
Of course there is a 12 port configurable FXS/FXO
blade from VoiceTronix
/w
--
On Mon, Mar 01, 2004 at 06:23:08PM -, Senad Jordanovic wrote:
You could port your numbers to a licenced telco... Install SDSL (or even
ADSL if you have a lot of faith in your current provider) and get all
lines working throught SDSL.. :) You prabably should keep one BT line
for fax and/or
Steve Kennedy wrote:
On Mon, Mar 01, 2004 at 06:23:08PM -, Senad Jordanovic wrote:
You could port your numbers to a licenced telco... Install SDSL (or
even ADSL if you have a lot of faith in your current provider) and
get all lines working throught SDSL.. :) You prabably should keep
one
On Mon, Mar 01, 2004 at 08:10:11PM -, Senad Jordanovic wrote:
Steve Kennedy wrote:
On Mon, Mar 01, 2004 at 06:23:08PM -, Senad Jordanovic wrote:
You could port your numbers to a licenced telco... Install SDSL (or
even ADSL if you have a lot of faith in your current provider) and
I have disagree about the ADSL. I have a1.5 Mbit/512kbit service from
Covad (in the US Southwest) and I have sustained 4 calls without a
problem. I prefer to use GSM over G.711to squeeze it down, but that is
my choice. I don't feel that call quality is substandard.
Michael
On Tue, 2 Mar 2004
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