Saturday, September 27, 2008

Re: [asterisk-biz] proper analog behavior using an ATA

See comments inline.

On Sat, Sep 27, 2008 at 12:42 PM, Jim Houser <jhouser@trustamerifirst.com> wrote:
Hi all,

 Sorry, kinda long but please read...

 I'm looking for some help or correction if I'm overlooking something.  Let me preface this with I would be "the old guy on the block".  I was installing channel banks from Rockwell when they were the size of a fridge for only 48 circuits.  Pre-Newbridge days when you had BIG cards for each circuit with dip switches not software.  :-)

Why the bibliography?  I understand that you have been doing telephony for a long time.  So have I, but just not as long as you, same understanding though.
 

 I've dealt with most big name PBXs, Centrex, etc through the years.  I have a good data networking background and have a good grasp of common programming languages.  I have evolved with the industry, now I'm into VoIP and loving every minute of it.  I have been using Asterisk around 3 years.  Started with compiling my own and Asterisk@home.

Most "Old School Telephony Guys" Hate VoIP.  That may not be the case with you, but most people don't like change in general. 

Just for future reference, you don't really compile Asterisk@home, it is just an image that you install.
 

 Here's my issue I hope to get feedback and help with;

 I have used many a SIP phone and by way of tweaking * and the phone's local dial plan I have been able to absolutely emulate the behavior and speed of dial out with any TDM system and their priority digital phones.  Sound quality has also been matched if not better on the VoIP deployment verses the TDM deployment.

 However, this is NOT the case with analog phones.  I have used analog FXS adapters from Linksys, Grandstream, Audiocodes and both Digium's analog cards in their TDM400 and the IAXy.

Give Quintum a try, they are excellent.  I have heard good things about Rhino and Xorcom.  Do you know they stopped using 25 pair lines for stations, that could be part of the problem ;-P
 


 My issues have been proper passing of CID, support for hook flash in small caller id call waiting dependent systems, (home offices and churches), not to mention some installs requiring a bunch of tweaking to kill echo or volume issues.  The hook flash support is faulty at times and full of clucks, clicks, slow returning dial tone.  Basically a real feeling of cheap quality and "emulation" going on.

 In the past, on TDM systems, I used their ATA or a KSU or PBX analog port for any basic analog phone and it was both plug & play along with solid sound quality at all times.  

To be fair, it was not plug and play, you had to be somewhat skilled at the switch you were configuring and good with a 110/66 block and a punch too.  Many times you needed a couple of people to bust out the toner to make sure you had the right pair.
 
Heck I even placed modems or faxes behind them without issues, (yes, I understand why a modem or fax is an issue behind the VoIP to FXS conversion).  Just throwing this out because it's another area where VoIP is behind the times.

If I were you and I never will be, but I would try to adapt to the paradigm that VoIP is not behind the times, it is just trying to accommodate other technologies that are behind the times, such as modems and FAXs.
 

 Now don't get me wrong.  I'm a major Asterisk evangelist and not pushing go back to TDM.  My basis for crying for help here is we cannot forget the users of the world were trained and lived on TDM, both in business and at home.  

My mother can use a computer very well (and she was "trained" on a typewriter) and my niece is amazing with technnology for her age. 

Things get old and antiquated.  Morse Code, VCRs, reel to reels, switchboards, betamax, even OTA non digitial TV in a few months.  Everything changes, gets better, and people cling to the old ways.  I know several people that swear that their old records and record player sound better than a digital CD.
 
That's where their expectation is.  What you sell better sound and work, in it's worst case, like the old TDM platforms did.

And it does, at a MUCH cheaper price point, with many more features, if engineered and installed by someone who knows what they are doing.  Flexibility is mind blowing.
 

 I should mention I have obtained the level and quality in an analog phone that is top notch without the emulation feel but it is only for the large users.  That has been to do a Asterisk T1 connected to an Audit 600 using analog station cards.  This paralleled the analog service delivery I could get from the TDM world, but it's an expensive deployment.

I think you should try a few different vendors and solutions.  What you mention above is going to give you pretty much the best analog.  I am sure someone else can sell you something that does this with SIP.  My personal recommendation is Quintum, but I am sure others do just as well.
 


 What have people used in a small deployment, 2 to 4 FXS ports, that REALLY performs like a traditional TDM delivered analog service?

Generally, you buy a Digium or Sangoma board with the right number of FXO ports and then in install Polycom (or whatever) SIP phones. 

Personally, with both Digium and Sangoma FXS ports, I get perfect operation.  Maybe try posting your configs instead of a book and biography.

Have you explored your zap configs?  There could be a simple setting that makes everything wonderful.  Asterisk@home didn't really have much facility for that.
 

Thanks for allowing me to rant, (fighting with a Linksys PAP2T on a home office Asterisk switch right now).

Jim


Thanks,
Steve Totaro

Re: [asterisk-biz] Asterisk and VoIP educational resources

Too confusing and it looks like I have to go through some sort of registration process.....

My contribution would be google.com

On Sat, Sep 27, 2008 at 12:11 PM, randulo <spamsucks2005@gmail.com> wrote:
Hi,

Next week on the VUC, we will be reviewing as many ways to bullet
proof your entry into the mailing list or the IRC channel. We all know
RTFM is the first step. It is in the interest of everyone in the
community to make as many resources know as possible. If you have a
site or book that is not on the list below, please either post to this
thread or send it to me using http://delicious.com with the tag
for:voipusersconference

http://voip-info.org
http://lists.digium.com
http://www.asteriskblog.com/
http://www.asteriskdocs.org/
http://www.voipusersconference.org
http://www.disruptivetelephony.com/
http://www.mgraves.org/voip/
http://www.voip-news.com
http://www.the-asterisk-book.com
http://www.voipspeak.net/
http://www.venturevoip.com/news.php
http://www.asteriskguru.com/
http://asterisk.net.au/

Note that nearly every blog starts with Asterisk + Skype news :)

Besides the above and many more we'll talk about, there are countless
"niche" resources like Lumenvox and their tutorials in speech
recognition

Please add your resources to the list and better yet, send them via
delicious.com

/r

ps. I wish I had a recording of my entry into the world of asterisk
via #asterisk. The words "crack pipe" and "moose .p..." were an
integral part. Ring any bells? As I've said many times, my favorite
intro is still John Todd's two articles:

http://www.onlamp.com/pub/a/onlamp/2003/07/03/asterisk.html
http://www.onlamp.com/pub/a/onlamp/2004/01/22/asterisk2.html

They are dated, yes, but there's more info per inch there than a lot
of other sites! Thanks, John!

Another great (but again outdated) text: http://automated.it/guidetoasterisk.htm

Someone needs to start these initiatives again for 1.6.

_______________________________________________
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  http://lists.digium.com/mailman/listinfo/asterisk-biz

[asterisk-biz] proper analog behavior using an ATA

Hi all,

Sorry, kinda long but please read...

I'm looking for some help or correction if I'm overlooking something. Let me preface this with I would be "the old guy on the block". I was installing channel banks from Rockwell when they were the size of a fridge for only 48 circuits. Pre-Newbridge days when you had BIG cards for each circuit with dip switches not software. :-)

I've dealt with most big name PBXs, Centrex, etc through the years. I have a good data networking background and have a good grasp of common programming languages. I have evolved with the industry, now I'm into VoIP and loving every minute of it. I have been using Asterisk around 3 years. Started with compiling my own and Asterisk@home.

Here's my issue I hope to get feedback and help with;

I have used many a SIP phone and by way of tweaking * and the phone's local dial plan I have been able to absolutely emulate the behavior and speed of dial out with any TDM system and their priority digital phones. Sound quality has also been matched if not better on the VoIP deployment verses the TDM deployment.

However, this is NOT the case with analog phones. I have used analog FXS adapters from Linksys, Grandstream, Audiocodes and both Digium's analog cards in their TDM400 and the IAXy.

My issues have been proper passing of CID, support for hook flash in small caller id call waiting dependent systems, (home offices and churches), not to mention some installs requiring a bunch of tweaking to kill echo or volume issues. The hook flash support is faulty at times and full of clucks, clicks, slow returning dial tone. Basically a real feeling of cheap quality and "emulation" going on.

In the past, on TDM systems, I used their ATA or a KSU or PBX analog port for any basic analog phone and it was both plug & play along with solid sound quality at all times. Heck I even placed modems or faxes behind them without issues, (yes, I understand why a modem or fax is an issue behind the VoIP to FXS conversion). Just throwing this out because it's another area where VoIP is behind the times.

Now don't get me wrong. I'm a major Asterisk evangelist and not pushing go back to TDM. My basis for crying for help here is we cannot forget the users of the world were trained and lived on TDM, both in business and at home. That's where their expectation is. What you sell better sound and work, in it's worst case, like the old TDM platforms did.

I should mention I have obtained the level and quality in an analog phone that is top notch without the emulation feel but it is only for the large users. That has been to do a Asterisk T1 connected to an Audit 600 using analog station cards. This paralleled the analog service delivery I could get from the TDM world, but it's an expensive deployment.

What have people used in a small deployment, 2 to 4 FXS ports, that REALLY performs like a traditional TDM delivered analog service?

Thanks for allowing me to rant, (fighting with a Linksys PAP2T on a home office Asterisk switch right now).

Jim

_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--

AstriCon 2008 - September 22 - 25 Phoenix, Arizona
Register Now: http://www.astricon.net

asterisk-biz mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-biz

[asterisk-biz] Asterisk and VoIP educational resources

Hi,

Next week on the VUC, we will be reviewing as many ways to bullet
proof your entry into the mailing list or the IRC channel. We all know
RTFM is the first step. It is in the interest of everyone in the
community to make as many resources know as possible. If you have a
site or book that is not on the list below, please either post to this
thread or send it to me using http://delicious.com with the tag
for:voipusersconference

http://voip-info.org
http://lists.digium.com
http://www.asteriskblog.com/
http://www.asteriskdocs.org/
http://www.voipusersconference.org
http://www.disruptivetelephony.com/
http://www.mgraves.org/voip/
http://www.voip-news.com
http://www.the-asterisk-book.com
http://www.voipspeak.net/
http://www.venturevoip.com/news.php
http://www.asteriskguru.com/
http://asterisk.net.au/

Note that nearly every blog starts with Asterisk + Skype news :)

Besides the above and many more we'll talk about, there are countless
"niche" resources like Lumenvox and their tutorials in speech
recognition

Please add your resources to the list and better yet, send them via
delicious.com

/r

ps. I wish I had a recording of my entry into the world of asterisk
via #asterisk. The words "crack pipe" and "moose .p..." were an
integral part. Ring any bells? As I've said many times, my favorite
intro is still John Todd's two articles:

http://www.onlamp.com/pub/a/onlamp/2003/07/03/asterisk.html
http://www.onlamp.com/pub/a/onlamp/2004/01/22/asterisk2.html

They are dated, yes, but there's more info per inch there than a lot
of other sites! Thanks, John!

Another great (but again outdated) text: http://automated.it/guidetoasterisk.htm

Someone needs to start these initiatives again for 1.6.

_______________________________________________
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AstriCon 2008 - September 22 - 25 Phoenix, Arizona
Register Now: http://www.astricon.net

asterisk-biz mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-biz

[asterisk-biz] Philippines

Anyone on the list involved in installing Asterisk in the Philippines – preferably someone with SugarCRM integration experience?

 

I have a friend who is setting up a domestic outbound call center with about 20 agents initially looking for a simple low cost implementation.

 

Email me with reference information and I’ll send you contact details.

 

 

 

 

Regards,

Dean Collins
dean@cognation.net

+1-212-203-4357 (New York)
+61-2-9016-5642 (Sydney)
http://www.Cognation.net

 

Friday, September 26, 2008

Re: [asterisk-biz] Skype for Asterisk.

Trixter aka Bret McDanel wrote:

> skype uses GIPS (global ip sound) for echo cancelation and all. That is
> a good system, but its not free. Googletalk also uses it in their
> client.

The current Skype clients do not use any technology from GIPS; the
wideband voice codec and echo cancellers were written by Skype's audio
development teams.

--
Kevin P. Fleming
Director of Software Technologies
Digium, Inc. - "The Genuine Asterisk Experience" (TM)

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Re: [asterisk-biz] Skype for Asterisk.

On Fri, 2008-09-26 at 10:47 -0400, Drew Gibson wrote:
> Alex Balashov wrote:
> > It may just be my profound ignorance of the merits of Skype, but I am
> > not sure what the benefit here is or why it is desirable or beneficial.
> >
>
> Although there may be technical benefits, I believe the greater benefit
> is more on the marketing side.
>

skype uses GIPS (global ip sound) for echo cancelation and all. That is
a good system, but its not free. Googletalk also uses it in their
client.

The biggest merits is being able to call other skype users or have them
call you. Many people want 1 service only and to have to use many
different methods of contact frustrates them, they are also more likely
to call if its free - something that skypeout isnt.


Skype however seems to have an archilles heel for corporate uptake,
which this seems to be at least in part to try to fix. Lets look at the
ebay example that they have pushed at least once. Sellers on ebay can
list skype contact info and be called by buyers. Ok sounds good but if
you are a corporate ebay seller more than one person may answer the
phone. This makes skype almost unusable in that situation.

Now if you know the right people to talk to you can route calls to skype
via sip+g729 to at least call their users, but they really try to hide
this and dont advertise it.

Skype also is rumored to be "secure" however the german police have
raided people for publishing info on the trojan that the german
government has, developed and uses to monitor skype calls (on the client
machine not on the "skype network"). The german police dont like it
when people reveal their secrets. Bundestrojan is the name.

I dislike the way skype turns your box into a "supernode" and consumes
your bandwidth all for the benefit of the ebay corporations, yes you can
trick the skype client into not doing that, if you have sufficient
control on the network to filter stuff, but its not something I would
like, why should I as a paying customer have my network abused so the
company can make more money?


--
Trixter http://www.0xdecafbad.com Bret McDanel
Belfast +44 28 9099 6461 US +1 516 687 5200
http://www.trxtel.com the phone company that pays you!


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