RE: [Asterisk-Users] Best drivers for HFC-S ISDN cards

2005-09-27 Thread Chris Bagnall
I said:
 I've tried isdn4linux (severe echo, reproducable on every 
 inbound call) and zaphfc (intermittent echo, disappears 
 within about 30 secs of the call starting).

Many thanks to those who replied. General consensus seems to be switching to
mISDN or CAPI won't solve the intermittent echo problem. A follow-up with
some more config information:

Zaptel.conf
span=1,1,3,ccs,ami
bchan=1-2
dchan=3
span=2,1,3,ccs,ami
bchan=4-5
dchan=6
loadzone=uk
defaultzone=uk

Zapata.conf:
[channels]
language = en

pridialplan = dynamic
nationalprefix = 0
internationalprefix = 00

switchtype = euroisdn
signalling=bri_cpe_ptmp
group=1
context=isdn
channel = 1-2

switchtype = euroisdn
signalling=bri_cpe_ptmp
group=2
context=isdn
channel = 4-5

echocancel=yes
echocancelwhenbridged=yes
echotraining=no
;echotraining=800
rxgain=0.0
txgain=0.0
immediate=yes

I've tried echotraining off, on, 100, 400 and 800, none of which seem to
help matters very much. Any suggestions for getting rid of echo on these
lines would be gratefully appreciated.

Regards,

Chris
-- 
C.M. Bagnall, Director, Minotaur I.T. Limited
Tel: (07010) 710715   Mobile: (07811) 332969   Skype: minotaur-uk
ICQ: 13350579   AIM: MinotaurUK   MSN: [EMAIL PROTECTED]   Y!: Minotaur_Chris
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Re: [Asterisk-Users] Best drivers for HFC-S ISDN cards

2005-09-27 Thread Tim Robinson

Chris
Looking at this file below you need to move the stuff below the

channel = 4-5

line to each span definition.  Anything below the channel line gets 
completely ignored!  I stand to be corrected but I think your current 
config will not have any echo cancellation at all.


I have just posted my own zapata.conf files to this list.  Take a look.

Rgds
Tim Robinson
Basingstoke, UK


Chris Bagnall wrote:

I said:

I've tried isdn4linux (severe echo, reproducable on every 
inbound call) and zaphfc (intermittent echo, disappears 
within about 30 secs of the call starting).



Many thanks to those who replied. General consensus seems to be switching to
mISDN or CAPI won't solve the intermittent echo problem. A follow-up with
some more config information:

Zaptel.conf
span=1,1,3,ccs,ami
bchan=1-2
dchan=3
span=2,1,3,ccs,ami
bchan=4-5
dchan=6
loadzone=uk
defaultzone=uk

Zapata.conf:
[channels]
language = en

pridialplan = dynamic
nationalprefix = 0
internationalprefix = 00

switchtype = euroisdn
signalling=bri_cpe_ptmp
group=1
context=isdn
channel = 1-2

switchtype = euroisdn
signalling=bri_cpe_ptmp
group=2
context=isdn
channel = 4-5

echocancel=yes
echocancelwhenbridged=yes
echotraining=no
;echotraining=800
rxgain=0.0
txgain=0.0
immediate=yes

I've tried echotraining off, on, 100, 400 and 800, none of which seem to
help matters very much. Any suggestions for getting rid of echo on these
lines would be gratefully appreciated.

Regards,

Chris

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Re: [Asterisk-Users] Best drivers for HFC-S ISDN cards

2005-09-26 Thread Roy Sigurd Karlsbakk
It seems that HFC-S cards can be connected with asterisk in a few  
different
ways - isdn4linux, mISDN, chan_capi or zaphfc. I've tried  
isdn4linux (severe
echo, reproducable on every inbound call) and zaphfc (intermittent  
echo,

disappears within about 30 secs of the call starting).

What's the recommended way to hook up these ISDN cards? Is  
switching to capi
or mISDN likely to remove the echo problem completely, or is this  
one of

those things one has to accept?


CAPI doesn't work with this card. mISDN should work, but zaphfc  
should prolly be fine as well. isdn4linux will probably work, and  
give you a long term headache, nausea and possibly hemroids. you may  
want to tune the echo cancellation in zaptel (echocancel=256 or  
something) to see if that helps...


roy
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Re: [Asterisk-Users] Best drivers for HFC-S ISDN cards

2005-09-26 Thread Armin Schindler
On Mon, 26 Sep 2005, Roy Sigurd Karlsbakk wrote:
  It seems that HFC-S cards can be connected with asterisk in a few
  different
  ways - isdn4linux, mISDN, chan_capi or zaphfc. I've tried isdn4linux
  (severe
  echo, reproducable on every inbound call) and zaphfc (intermittent echo,
  disappears within about 30 secs of the call starting).
  
  What's the recommended way to hook up these ISDN cards? Is switching to
  capi
  or mISDN likely to remove the echo problem completely, or is this one of
  those things one has to accept?
 
 CAPI doesn't work with this card. mISDN should work, but zaphfc should prolly

If mISDN does work, then CAPI (chan_capi) can be used for this card too, 
because mISDN provides a CAPI interface.

Armin

 be fine as well. isdn4linux will probably work, and give you a long term
 headache, nausea and possibly hemroids. you may want to tune the echo
 cancellation in zaptel (echocancel=256 or something) to see if that helps...
 
 roy
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Re: [Asterisk-Users] Best drivers for HFC-S ISDN cards

2005-09-26 Thread Tim Robinson


Chris
I have only ever used zaphfc drivers and for me they are perfect.  Echo 
has never been a problem.  It would be helpful if you were to provide a 
bit more information to the group about your configuration so we can try 
and help you work out the cause.


Switching to capi or mISDN is unlikely to help and will almost certainly 
be a retrograde step as far as I hear from these forums.


Best regards
Tim Robinson
Basingstoke, UK

Chris Bagnall wrote:

It seems that HFC-S cards can be connected with asterisk in a few different
ways - isdn4linux, mISDN, chan_capi or zaphfc. I've tried isdn4linux (severe
echo, reproducable on every inbound call) and zaphfc (intermittent echo,
disappears within about 30 secs of the call starting).

What's the recommended way to hook up these ISDN cards? Is switching to capi
or mISDN likely to remove the echo problem completely, or is this one of
those things one has to accept?

Thanks in advance.

Regards,

Chris

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