Re: [Asterisk-Users] What does RELAXDTMF do?

2006-06-11 Thread Peter J Dean
Thanx for everyone's passionate responses, and apologises for not  
replying sooner.


1. Based on what I have seen I take it noone is sure of what the true  
purpose and the effects of the relaxdtmf parameter offer.
2. I am using both a mixture of VSP's and SPA3K's, but primarily it  
is the VSP's
3. And as for tweaking the output level's, I see no options being  
provided within the IAX and SIP configuration files, and not really  
concerned with the SPA3K's at this time since they are fail-overs.
4. Since the bulk of my issues are through the IAX2/SIP methods for  
DMTF and Asterisk has direct issues with DTMF, I just hope that v1.4  
will be released sooner rather than later.



On 09/06/2006, at 5:11 AM, Martin Joseph wrote:



On Jun 8, 2006, at 3:13 AM, Peter J Dean wrote:

I have an issue with DTMF. DTMF is being partly recognised by some  
external IVR systems (banks, billing, etc), other IVR systems have  
intermittent issues. Call our VSP directly and using their IVR  
system without issue, and our internal IVR works just fine.  
Currently i have all voip devices using RFC2833, which is what is  
recommended, and thus the sip.conf file has dtmfmode=rfc2833 and  
relaxdtmf=yes.


I have not seen any information that clearly defines the purpose  
of the relaxdtmf parameter in the sip.conf file, and wondering of  
flicking it from yes to no will have an impact, and if so what  
sort of impact will it have?


Dunno about that, but usually the gain of the output is the most  
likely source for this kind of intermittent issue.  If you can  
tweak your output level a hair each way and retest, you might find  
you are ok.


Just a thought,
marty

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Re: [Asterisk-Users] What does RELAXDTMF do?

2006-06-09 Thread Martin Joseph


On Jun 8, 2006, at 7:00 PM, Doug Crompton wrote:

I think he clearly states at the end of his message that he is using 
the

SPA-3000.
snip


My bad.  Should learn to read more carefully (and type too) .

My apologies.
Marty

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Re: [Asterisk-Users] What does RELAXDTMF do?

2006-06-09 Thread Martin Joseph


Doug,

DTMF in a complex environment like this can break for many reasons.

Please don't generalize your problem onto other people.  He didn't say 
he was using the Sipura 3000 so we don't know for sure what his issue 
is.


I am only saying this due to my own limited experience and how many 
ways I have found to break DTMF ;~)


Marty

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Re: [Asterisk-Users] What does RELAXDTMF do?

2006-06-09 Thread Martin Joseph


On Jun 8, 2006, at 3:13 AM, Peter J Dean wrote:

I have an issue with DTMF. DTMF is being partly recognised by some 
external IVR systems (banks, billing, etc), other IVR systems have 
intermittent issues. Call our VSP directly and using their IVR system 
without issue, and our internal IVR works just fine. Currently i have 
all voip devices using RFC2833, which is what is recommended, and thus 
the sip.conf file has dtmfmode=rfc2833 and relaxdtmf=yes.


I have not seen any information that clearly defines the purpose of 
the relaxdtmf parameter in the sip.conf file, and wondering of 
flicking it from yes to no will have an impact, and if so what sort of 
impact will it have?


Dunno about that, but usually the gain of the output is the most likely 
source for this kind of intermittent issue.  If you can tweak your 
output level a hair each way and retest, you might find you are ok.


Just a thought,
marty

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Re: [Asterisk-Users] What does RELAXDTMF do?

2006-06-08 Thread Doug Crompton
Peter,

 Perhaps you have not followed the thread over the last few days about
DTMF feedthru??? Here is what I sent out to another list kind of summing
it up

Regarding DTMF pass thru problems when using the SPA-3000 and *. The
problem manifests itself as the inability to pass DTMF over the FXO to a
PSTN call once the call is established. This would be used to call a bank,
external voicemail or other service and use DTMF signaling to their
service.

To make a long story short (you can go thru the * mailist archives) this
is an * problem in RFC-8233. It has been known for awhile and is being
worked on in the form of a total RFC-8233 rewrite coming in 1.4 *
hopefully this summer. Until then here is the fix I came up with.

The FXO port Sipura setup (PSTN) should be set to INBAND for dtmf and the
codec limited to g711u (or a), on the * side in sip.config FXO context
set dtmf=inband and limit the codec to only g711u (or a)

When you call yourself (say using your cell) and listen on the opposing
phone hitting a key one listening on the other you should hear at least a
half second or so of audible tone. Check this before and after changing
these settings. Using RFC-8233 all I heard was a click and little or no
audible tone.

One other thing is that you CANNOT use features via tones over the FXO
(TtWw,etc flags in dial). This is another broken issue in *. When you
listen over the phone and hit a lead in character, defined in
features.config, * mutes that character and it never gets sent. The
correect action should be that it should mute it and wait until the second
character. If the second character is not sent in a defined time then send
the first character. This is not happenning. This might be an INBAND issue
though and once RFC-8233 is fixed and can be used it might then work.

If you have no need to send DTMF on a connected call via FXO then this
change is not needed and you can use the current RFC-8233 as well as
features. Just remember when you try to send DTMF over FXO port to PSTN
that you know why it does not work!!

This problem was/has been blamed on Sipura but is really an admitted *
problem. It exists with other (but certainly not all) fxo devices
also.

As I said the best way to troubleshoot this is to actually call yourself
and listen. Otherwise you are shooting in the dark and guessing.

Doug


On Thu, 8 Jun 2006, Peter J Dean wrote:

 I have an issue with DTMF. DTMF is being partly recognised by some
 external IVR systems (banks, billing, etc), other IVR systems have
 intermittent issues. Call our VSP directly and using their IVR system
 without issue, and our internal IVR works just fine. Currently i have
 all voip devices using RFC2833, which is what is recommended, and
 thus the sip.conf file has dtmfmode=rfc2833 and relaxdtmf=yes.

 I have not seen any information that clearly defines the purpose of
 the relaxdtmf parameter in the sip.conf file, and wondering of
 flicking it from yes to no will have an impact, and if so what sort
 of impact will it have?

 Redhat FC4 + updates
 Asterisk v1.2.9.1
 SNOM v6.0.3 beta
 SPA3000 v3.1.10d

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*  Doug Crompton   *
*  Richboro, PA 18954  *
*  215-431-6307*
*  *
* [EMAIL PROTECTED]*
* http://www.crompton.com  *



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Re: [Asterisk-Users] What does RELAXDTMF do?

2006-06-08 Thread Doug Crompton
Pardon me??? Did you read the end of his message where he listed his HW???

Doug

On Thu, 8 Jun 2006, Martin Joseph wrote:


 Doug,

 DTMF in a complex environment like this can break for many reasons.

 Please don't generalize your problem onto other people.  He didn't say
 he was using the Sipura 3000 so we don't know for sure what his issue
 is.

 I am only saying this due to my own limited experience and how many
 ways I have found to break DTMF ;~)

 Marty

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Those that sacrifice essential liberty to obtain a little temporary safety
 deserve neither liberty nor safety.  -- Ben Franklin (1759)


*  Doug Crompton   *
*  Richboro, PA 18954  *
*  215-431-6307*
*  *
* [EMAIL PROTECTED]*
* http://www.crompton.com  *



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Re: [Asterisk-Users] What does RELAXDTMF do?

2006-06-08 Thread Doug Crompton
I think he clearly states at the end of his message that he is using the
SPA-3000.

I have not seen any information that clearly defines the purpose of
the relaxdtmf parameter in the sip.conf file, and wondering of
flicking it from yes to no will have an impact, and if so what sort
of impact will it have?

Redhat FC4 + updates
Asterisk v1.2.9.1
SNOM v6.0.3 beta
SPA3000 v3.1.10d


Doug

On Thu, 8 Jun 2006, Martin Joseph wrote:


 Doug,

 DTMF in a complex environment like this can break for many reasons.

 Please don't generalize your problem onto other people.  He didn't say
 he was using the Sipura 3000 so we don't know for sure what his issue
 is.

 I am only saying this due to my own limited experience and how many
 ways I have found to break DTMF ;~)

 Marty

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Those that sacrifice essential liberty to obtain a little temporary safety
 deserve neither liberty nor safety.  -- Ben Franklin (1759)


*  Doug Crompton   *
*  Richboro, PA 18954  *
*  215-431-6307*
*  *
* [EMAIL PROTECTED]*
* http://www.crompton.com  *



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