[Asterisk-Users] Current echo status?

[Scott Laird]

On Jul 15, 2004, at 4:47 PM, Joshua McClintock wrote:
> We're using asterisk in production at my place.  We have about 45 users
> (33 snom 200 sip phones and the rest on soft phones).  We're connected
> to the telco via a pri (23 useable channels) using the digium t1 card.
> We have another t1 card hooked to an adit 600 channel bank for analog
> services.
>
> Internally, sip2sip calls, you can't hear any echo.  Anything that 
> heads
> out over the pri is really pretty good.  Unless you have cyborg ears,
> you don't hear much, if any echo (at least the users haven't
> complained).

Okay, good to know.  Echo is my only real concern.  Everything else is 
just sysadmin work, dealing with management, and training users, and I 
know how to handle those :-).

> One thing that bites on the snom 200 is the speaker.  It seems to be
> very choppy sounding.  Someone here seems to think the VOX chip is 
> junk,
> but I really don't know what the deal is.

Okay.  I like my 7940 at home, but the Polycom phones look like a 
really good buy.  They're a bit more expensive then the snom, but we 
don't need very many of them right now, so I doubt it's a big problem.

> We've plugged in our normal (analog) conference phone via the channel
> bank and it kicks butt.  The adit 600 is a good device.  We can
> send/receive faxes (the standalone modems seem to be ok as well, though
> I haven't seen at what rate their connecting at, we only use 'em for
> payroll and the postage machine so pry 9600).

Good to know.  I haven't counted up FXS ports yet to know what we're 
going to need; we *might* be able to get by with just a TDM400.

> The PoE seems to work flawlessly (we're using the powerdsine 24 port
> midspans).
>
> Out of 33 snom phones, 1 couldn't use PoE (external ps works), 1 
> worked,
> but the internal ps seemed to give out, now it won't power on at all, 1
> spontanously reboots, and 1 seems to have a problem with it's on hook
> button.

Sounds like our last batch of Dell servers...

> Watchout who you buy them from, as the company we ordered from is a
> disgrace, getting these rma'ed is a total pain (still not done).  I
> would almost suggest setting yourself up as a reseller and buy directly
> from the closest distributer (I don't know if they charge a fee or 
> not).

Thanks.


Scott