[asterisk-users] FAX over T1 Question

[Steve Totaro]

I don't know what Eric is talking about.  My advice applies to T1 PRI
as does the rest as far as I care to read.

Thanks,
Steve Totaro

On Mon, Sep 8, 2008 at 10:56 AM, Amaru Netapshaak
<postfix_amaru at yahoo.com> wrote:
> Eric,
>
> So what is practical for a PRI then?
>
> Thank you!!!
>
> ++Amaru
>
> --- On Fri, 9/5/08, Eric "ManxPower" Wieling <eric at fnords.org> wrote:
>
> From: Eric "ManxPower" Wieling <eric at fnords.org>
> Subject: Re: [asterisk-users] FAX over T1 Question
> To: postfix_amaru at yahoo.com, "Asterisk Users Mailing List - Non-Commercial
> Discussion" <asterisk-users at lists.digium.com>
> Date: Friday, September 5, 2008, 10:04 PM
>
> The thing is, you are doing FAX over PRI, not FAX over T-1 (which to me
> implies Channelized T-1). Seems like most people gave you advice that
> might apply to a Channelized T-1, but would not apply or be practical
> for a PRI.
>
> Amaru Netapshaak wrote:
>> Bob,
>>
>
>> I should have added that I have disabled hardware EC on the T1 ports.
>>
>> Here is a sample of my zapata.conf -- channels 1-23 are my incoming PRI.
>> This PRI handles both Voice AND FAX calls.  Having the hardware EC
>> disabled makes for poor voice communications, and im looking for a way to
>> enable/disable EC per the call type.   I understand that
> "echoncancelwhenbridged"
>> and Zapata should be telling my A104d to enable/disable HWEC
> automatically.
>>
>> Channel 25 is the first FXS port on my Rhino CB.  It has a FAX directly
>> attached to it.
>>
>> [channels]
>> language                =  en
>> switchtype              =  national
>> signalling              =  pri_cpe
>> pridialplan             =  national
>> prilocaldialplan        =  national
>> faxdetect               =  both
>> echotraining            =  no
>> echocancel
>    =  256
>> echocancelwhenbridged   =  no
>> relaxdtmf               =  yes
>> overlapdial             =  no
>> usecallingpres          =  yes
>> amaflags                =  default
>> context                 =  default
>> group                   =  1
>> channel                 => 1-23
>>
>> signalling              = fxo_ls
>> faxdetect               = both
>> echotraining            = no
>> echocancel              = no
>> echocancelwhenbridged   = no
>> relaxdtmf               = yes
>> context                 = default
>> callerid                = "FAX" <1112222>
>> channel                 => 25
>>
>> Thanks for your assistance everyone!
>>
>>
>>
>> --- On Fri, 9/5/08, Bob Pierce <pierceb at westmancom.com> wrote:
>> From: Bob Pierce <pierceb at westmancom.com>
>> Subject: Re: [asterisk-users] FAX over
>  T1 Question
>> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com>
>> Date: Friday, September 5, 2008, 4:43 PM
>>
>> On Fri, 2008-09-05 at 09:19 -0700, Amaru Netapshaak wrote:
>>> I have a Sangoma A104d T1 card, a Rhino 24-port FXS box, and am
>>> running
>>> Asterisk 1.4.21.2
>>
>> I think you're mostly right on this setup, but I wonder if your A104d
> is
>> doing some hardware echo cancellation on these calls. If I'm not
>> mistaken, that can mess up fax machine communications.
>>
>> Bob
>>
>>
>>
>>
>>
>>
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