[Asterisk-Users] HandyTone 488 ata?

[Martin Joseph]

On Jan 29, 2006, at 11:24 AM, Rich Adamson wrote:

>
>>> Anyone tried to muck around with using the 488 for both fxs and fxo
>>> with asterisk?
>>>
>>> I've been playing with one for the last couple of days, and it looks
>>> like its a little lower quality then the spa3k. No gain settings, 
>>> echo
>>> canceller is less then ideal on long analog pstn loops, etc.
>>>
Thanks a lot for posting this topic!  I was kind of wondering along the 
same lines, but didn't have the whole thing together in my mind.  I am 
a newb, so my confidence is lacking....

I have been using the HT-488 for several months now.  My observations 
are as follows.

The locking up that is described by the other poster, seems to be to be 
related to the routing functions of this device.  I have gotten up to 
20 days of uptime (current), by disabling this and using the WAN port 
only.  I don't need it's routing anyhow.

This issues with the echo and the volume are the same here.  I 
sometimes here echo, and then in the midst of the call I hear a loud 
static burst and the echo stops.  I wasn't entirely sure why this was 
happening,  but it happens both when using the local FXS,  and when 
using a remote AG-168V, so it's clearly and FXO issue.

I have a gut feeling that a gain adjustment for this device might also 
help it's echo cancel function?  Is there anyway that anyone knows of 
to adjust the gain?

I am going to NEED to replace this device with some other FXO 
(external),  so if there are other superior options I would love to 
hear them.  I know about the Sipura 3000, but have heard about some 
issues with that too...

Thanks,
Marty