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

[Tim Robinson]

Hi

As requested here are my configs.  I have 3 zaphfc cards - 2 in NT mode 
and 1 in TE mode connected to the BT network.

I have a variety of phones - a Cisco 7940, a Snom 190, a Grandsteam 
Budgie plus 2 cordless ISDN phones on one of the NT ports, and a Network 
Alchemy Cybergear Gold on the other connected to some analogue phones.

no echo. nil. niets!

Please post a diagram of your system config and we can take a look at it 
  if you need some help.

Rgds
Tim


Here is zaptel.conf

loadzone=uk
defaultzone=uk
span=1,1,3,ccs,ami
bchan=1-2
dchan=3
span=2,0,3,ccs,ami
bchan=4-5
dchan=6
span=3,0,3,ccs,ami
bchan=7-8
dchan=9

Here is my zapata.conf file

;
; Zapata telephony interface
;
; Configuration file
;NT mode - extension card
[channels]
nocid=Unavailable
withheldcid=Withheld
language=en
usecallerid=yes
callwaiting=yes
nationalprefix=0
internationalprefix=00
switchtype = euroisdn
signalling = bri_net_ptmp
pridialplan=local
prilocaldialplan=local
echocancel=yes
echocancelwhenbridged=no
immediate=no
overlapdial=yes
group = 1
context=cybergear-in
channel => 1-2


;NT mode - extension card
nocid=Unavailable
withheldcid=Withheld
language=en
usecallerid=yes
callwaiting=yes
nationalprefix=0
internationalprefix=00
switchtype = euroisdn
signalling = bri_net_ptmp
pridialplan=local
prilocaldialplan=local
echocancel=yes
echocancelwhenbridged=no
immediate=no
overlapdial=yes
group = 2
context=isdn-phones-in
channel => 4-5





;TE mode - for ISDN line
nocid=Unavailable
withheldcid=Withheld
Language=en
usecallerid=yes
pridialplan=unknown
nationalprefix=0
internationalprefix=00
switchtype = euroisdn
signalling = bri_cpe_ptmp
echocancel=yes
echocancelwhenbridged=no
immediate=no
overlapdial=yes
group = 3
context=isdn-in
channel => 7-8


Giordano Grandis wrote:
> Well done Tim...could u post here your Zapata.conf ?  :)
> 
> I'm in Italy and have some issues with echo....
> 
> Thanks
> 
> Giordano Grandis
> g.grandis at invidea.it
>  
> -----Messaggio originale-----
> Da: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] Per conto di Tim Robinson
> Inviato: lunedì 26 settembre 2005 22.30
> A: Asterisk Users Mailing List - Non-Commercial Discussion
> Oggetto: Re: [Asterisk-Users] Best drivers for HFC-S ISDN cards
> 
> 
> 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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