[cisco-voip] Loopstart vs Groundstart

[Philip Walenta]

If memory serves, Groundstart was typically used in longer CPE -> Central
office runs.  Very uncommon in most areas today.

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Scott Voll
Sent: Wednesday, March 03, 2010 3:45 PM
To: Mike King
Cc: Cisco VoIPoE List
Subject: Re: [cisco-voip] Loopstart vs Groundstart

 

Loop start is the norm with Telco (at least in my area oregon).  Ground
start is something that would require the Telco to do something out of the
norm.

 

I have had to have a ground start installed once, but I would not do it
again.

 

Scott

On Wed, Mar 3, 2010 at 1:41 PM, Mike King <me at mpking.com> wrote:

I'm just confirming what used to apply to my old PBX still holds true with a
VIC2-4FXO in a 2921 router.

 

For analog lines from the PSTN:

  Loopstart bad

  Groundstart good

 

The application is I'm bringing up a small SRST site, and we are replacing
they're old key phone system.  I have no idea what the existing lines are,
but we have enough time to change the type out.

 

 


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