[Asterisk-Users] HT-488 vs. SPA-3000?

[John Cianfarani]

I've been looking into this more for a small deployment.
Is it at all possible to put some other line adapter to amplify/increase
signal before it goes into the spa3k?

Something like these? (Found these after a quick google search)
http://www.harriscomm.com/catalog/default.php?cPath=1141_47_167

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1503&item=5784527504&
rd=1&ssPageName=WDVW

Would love to know if anyone has tried them.

Thanks
John Cianfarani

---
I had exactly the same experience with the SPA-3000. Too bad too since
it's nice device...if it were 6 db hotter.

I also installed a TDM-400, which was better in a lot of ways but not
perfect. When I rebuild my server I ended up simply call forwarding my
POTS lines to a DID provided by an ITSP. This has been the best as far
as quality is concerned. If my DSL line goes down I simply defeat the
call forwarding on the main line and answer an analog phone for a
while, or call forward to me cell.

Michael

>On 6/15/05, Rich Adamson <radamson at routers.com> wrote:
>> > Just want to tap the collective wisdom of this list as to experiences
>> > pertaining to the Handytone HT488 and the Sipura SPA-3000 adapters...
>> 
>> I've not played with the ht488, but I believe others have posted this
>> device does not provide access to the pstn-fxo port. The spa3k does
>> provide that access (if you want it).
>> 
>> > Basically I'm looking for a FXO/FXS/LAN ATA and these two seems to be
>> > the top of the pick..Any comments and experiences esp. with Asterisk
>> > compatibility would be great, before I plonk in the bucks.
>> 
>> The spa3k works fine with asterisk as many have posted. However, once
>> in awhile it does act a little strange in two different ways:
>>  1. the spa3k will sometimes interpret some voices as tones which cause
>>  a little disturbance to any conversation going on. It is sort of like
>>  the old telephony "talk off" that existed years ago. Doesn't happen
>>  all that often and seems to be more sensitive to female voices based
>>  on my one-year of experience.
>>  2. sometimes it seems to operate in half-duplex mode, where if you try
>>  to talk at the same time as the other end is talking, the other end
>>  won't hear you.
>> 
>> Neither one of those have been all that objectionable to me, but they
>> happen and others have posted roughly the same issues. I've not heard
>> of anyone that has found a way to minimize those two issues.
>> 
>> The down side of the spa3k right now is that Cisco bought the company
>> and there likely won't be much advancement of the code until after the
>> ownership (and development efforts) are sorted out by both companies.
>> (The same kind of product delays has been seen with their Linksys
>> purchase, as well as when other companies are bought/sold.)
>> 
>> Its fairly common knowledge that ex-Cisco folks started Sipura for the
>> sole purpose of selling the company for a hugh profit. Their success
>> in accomplishing that objective could only be measured in terms of
>> producing Sipura products that had at least some acceptance of those
>> products by end users. With those previous objectives accomplished,
>> how will Cisco handle the Sipura products in the future? (It's any-
>> one's guess at this point since Cisco also has at least some track
>> record of mismanaging purchased companies for whatever reason.)
>> 
>> >From an internal Cisco strategic perspective, they now own the assets
>> that can make a major dent in the mass-market end-user voip product
>> arena, and hopefully they'll take that in a positive direction.
>> 
>> Given the price of the spa3k, I don't have any issue with purchasing
>> more of them right now. Excellent choice for the one-to-three pstn-fxo
>> market space.
>> 
>> 
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--
Michael Graves                           mgraves at pixelpower.com
Sr. Product Specialist                          www.pixelpower.com
Pixel Power Inc.                                 mgraves at mstvp.com

o713-861-4005
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c713-201-1262



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