[Asterisk-Users] Echo on a PRI

[Troy Settle]

> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com 
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of 
> Andrew Kohlsmith
> Sent: Tuesday, July 20, 2004 9:14 AM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] Echo on a PRI
> 
> On Tuesday 20 July 2004 09:04, Troy Settle wrote:
> > On the subject of echo on a PRI, I too get this, but only 
> when calling
> > people in certain rate centers.  Calls within my LATA 
> (primarily VZ) are
> > completely free of echo.  Calls to a neighboring LATA (all 
> Sprint) have
> > echo on almost every rate center.
> >
> > I wish I knew more about this so I could rip Sprint a new 
> one and tell them
> > to fix their trunking, but...
> 
> Are you sure it's Sprint's fault?  I mean perhaps calling 
> within your own LATA 
> has less delay than calling neighbour LATAs and, combined 
> with the delay that 
> the T100P/TE405P introduces, presents enough delay to 
> perceive echo...  

Pretty sure.  Severe echo problems are only apparent when calling
destinations within certain rate centers in this particular Sprint LATA
(956) from my LATA (244).  What's weird, is that inbound calls /from/ these
same rate centers seem to have much less echo problem.

It's possible that there's a something wrong with the trunking between my
telco (KMC Telecom), the tandem (Verizon), and my LD carrier (MCI), then
going to the destination (Sprint).

The reverse call path is Sprint => Sprint => KMC => me.

Fortunately, most of our calls are inbound, so it's not a huge issue at this
time.

--
  Troy Settle
  Pulaski Networks
  http://www.psknet.com
  540.994.4254 ~ 866.477.5638