[Aaug] Delayed ring

Christopher Fowler cfowler at outpostsentinel.com
Thu Feb 8 18:36:20 EST 2007


On Thu, 2007-02-08 at 18:26 -0500, Bill Learning wrote:
> Well the pros and cons of one implementation over another is for an
> Asterisk Beer Meeting *SMILE*.  A lot of the devices have auto sensing
> features in them, the sipura apparently doesn't, ok it really doesn't
> I
> was just being nice. 

I think that now makes more sense to me. 

What I've been doing today is test and compare so I'll know what I'm up
against.

I have 2 ATAs.  One works and one does not.  The one that does is the
DTA310.  The one that does not is the Sipura-2000.  I only found out
about this when I wanted to plug them both into my network.  I only have
one port available on the wired segment.  I gate the DTA310 that port.
I gave the Linksys port to the Sipura.  That is when I realized and you
pointed out that I need to make a config change on the Sipura.  what
struck me as odd was that I've placed the DTA310 in those situations
before and been successful.

Thankfully you just pointed out this is not a protocol limitation but a
device one.  In this case I can _not_ use the Sipura-2000 in production.
Basically no one works at the office.  They all work from home or where
ever.  We travel so we plan on taking these things with us.  They need
to work where ever we plug them into.  I can't have my sales rep calling
me stating that ATA does not work at the hotel he is at and then I
realize he is 2x natted.  I then do not want to have him call the front
desk asking questions like "What is the gateway address".  Typically
hotel Internet is out-sourced.  What I need is for him to plug in
anywhere an make calls.  The Sipura-2000 will not do that.  Maybe my
firmware is too old?  I did buy it used on eBay.  I should look into
upgrading it tomorrow.  These little quirks are important to know before
I go to any type of larger scale deployment.  I do not want to end up
trying to recoup investments selling stuff used on eBay.  I'm buying it
used there now just for testing purposes.  

The Sipura-2000 for me is best used when I _know_ the layout of the
network.  When I don't I need to trust another device.  Anyone here know
of one that can handle being natted a few times?







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