[asterisk-biz] ATA that Supports T.38

[Checkov, Andrew]

Hello Zoa,

Monday, March 12, 2007, 11:56:50 PM, you wrote:


Z> I'm not sure the Addpac would be the best solution.
cannot agree - Addpac looks like a Cisco clone with nearly the same
IOS inside.

Compare to cheaper ATAs from Linksys, Grandstream and many others it
has MUCH better T.38 implementation (probably due to more computing
power). All T.38 ATAs has one specific point - there is a viewable
silence gap between remote fax tone and local fax tone generated by
the ATA when T.38 switchover is done. Duration of this period with
most cheap ATAs is 2-3 seconds - and many fax machines don't like it
which results in not so stable operation. Both Cisco and Addpac switch from
remote to local fax tone immediatelly - you can recognise this
switchover only by changed sound level and sound distortions. As a
result fax machines works much better.

Z> Other ATA's that have it:
Z> Linksys
Z> Grandstream
Z> Allied Telesyn
Z> Cisco
Z> audiocodes
Z> Lots of ATA's have it on the box, but don't really support it, others 
Z> have it but it's complete crap

Z> Zoa.

Z> Stephan West (ISIPI) wrote:
>> Where do you buy the Addpac equipment from? Is there a domestic outlet 
>> for them or is it all straight from Korea?
>>  
>> Thanks,
>>  
>> Steve
>>
>>     ----- Original Message -----
>>     *From:* Talking Voice <mailto:talkingvoice at gmail.com>
>>     *To:* Commercial and Business-Oriented Asterisk Discussion
>>     <mailto:asterisk-biz at lists.digium.com>
>>     *Sent:* Monday, March 12, 2007 3:55 PM
>>     *Subject:* Re: [asterisk-biz] ATA that Supports T.38
>>
>>     http://www.addpac.com/addpac_eng/addpac_product_view_detail.php?class_id=19&item_id=59
>>     <http://www.addpac.com/addpac_eng/addpac_product_view_detail.php?class_id=19&item_id=59>
>>
>>     On 3/12/07, *Dovid Bender* <asterisk at dovid.net
>>     <mailto:asterisk at dovid.net>> wrote:
>>
>>         Hi Guys,
>>         Anyone know of an ATA that supports T.38 ?
>>          
>>         Thanks.
>>          
>>         Dovid
>>
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-- 
Best regards,
 Andrew                            mailto:acheck at astelnet.net