Mailing List Archive

On Thu, Aug 05, 2004 at 10:38:11AM -0500, Carter, Bill wrote:
> How far away from the CO can a Voice Gateway be with Ground Start Analog
> lines?

I've used the vic-2fxo with POTS service from sbc/ameritech
to gateway calls to the PSTN in the past. In the worst case, i've
used it when i know there are about 10 mi (16km) of cabling between
me and the nearest fiber hut where I could possibly be put on
a fiber trunk path (usually a lightspan here in ameritech land).

i did have problems a few times with it not detecting
disconnection, but i think that was more of a gateway issue
and less of a vic issue.

- jared

--
Jared Mauch | pgp key available via finger from jared@puck.nether.net
clue++; | http://puck.nether.net/~jared/ My statements are only mine.

On Thu, Aug 05, 2004 at 10:38:11AM -0500, Carter, Bill wrote:
> How far away from the CO can a Voice Gateway be with Ground Start Analog
> lines?

I'm about 28.000 ft from the Bellsouth CO and never had any issues.

micko

I am 18,000 ft. The line is Ground Start. Could the issue be grounding
of the Voice Gateway?

Aug 5 11:16:18.013 CDT: htsp_process_event: [3/0,
FXOGS_ONHOOK,E_HTSP_SETUP_REQ]fxogs_onhook_setup
Aug 5 11:16:18.013 CDT: [3/0] set signal state = 0x0 timestamp = 0
Aug 5 11:16:18.017 CDT: htsp_timer - 10000 msec
Aug 5 11:16:18.161 CDT: htsp_process_event: [3/0,
FXOGS_WAIT_TIP_GROUND, E_DSP_SIG_0100]fxogs_start_dial
Aug 5 11:16:18.161 CDT: htsp_timer_stop
Aug 5 11:16:18.161 CDT: [3/0] set signal state = 0xC timestamp = 0
Aug 5 11:16:18.161 CDT: htsp_timer - 1000 msec
Aug 5 11:16:18.670 CDT: htsp_process_event: [3/0, FXOGS_WAIT_DIAL_TONE,
E_DSP_SIG_1100]
Aug 5 11:16:18.670 CDT: fxogs_no_tipgnd
Aug 5 11:16:18.674 CDT: htsp_timer_stop
Aug 5 11:16:18.674 CDT: htsp_timer_stop2
Aug 5 11:16:18.674 CDT: htsp_timer2 - 350 msec
Aug 5 11:16:19.027 CDT: htsp_process_event: [3/0, FXOGS_WAIT_DIAL_TONE,
E_HTSP_EVENT_TIMER2]fxogs_wait_dial_tone_disc
Aug 5 11:16:19.027 CDT: htsp_timer_stop
Aug 5 11:16:19.027 CDT: [3/0] set signal state = 0x4 timestamp = 0
Aug 5 11:16:19.027 CDT: htsp_timer - 2000 msec
Aug 5 11:16:19.031 CDT: htsp_process_event: [3/0, FXOGS_GUARD_OUT,
E_HTSP_RELEASE_REQ]fxogs_guard_out_release
Aug 5 11:16:20.080 CDT: htsp_timer_stop3 htsp_setup_req
Aug 5 11:16:20.088 CDT: htsp_process_event: [3/0, FXOGS_GUARD_OUT,
E_HTSP_SETUP_REQ]
Aug 5 11:16:20.092 CDT: htsp_process_event: [3/0,
FXOGS_WAIT_TIP_GROUND, E_HTSP_RELEASE_REQ]fxogs_wait_tip_release


-----Original Message-----
From: micko [mailto:micko@micko.net]
Sent: Thursday, August 05, 2004 12:13 PM
To: Carter, Bill
Cc: cisco-voip@puck.nether.net
Subject: Re: [cisco-voip] VIC-2FXO analog Ground Start Distance Limit

On Thu, Aug 05, 2004 at 10:38:11AM -0500, Carter, Bill wrote:
> How far away from the CO can a Voice Gateway be with Ground Start
Analog
> lines?

I'm about 28.000 ft from the Bellsouth CO and never had any issues.

micko

Bill,

It really depends on which vwic you use. We have seen degraded audio when
the copper gets too long:

In measurements we took last year:
The old vic-2fxo-m1 had the best long cable performance. This performed
acceptably up to 5 mi of copper.
The nm-hda and mrp3-8fxo had the worst performance where audio arifacts were
apparent above 3miles.
The new vic2-2fxo and vic2-4fxo are supposed to have improved impedance
matching to accomodate up to 5mi of copper with the same or better voice
quality compared to the vic-2fxo-m1.

/Wes

> -----Original Message-----
> From: cisco-voip-bounces@puck.nether.net
> [mailto:cisco-voip-bounces@puck.nether.net]On Behalf Of Carter, Bill
> Sent: Thursday, August 05, 2004 11:38 AM
> To: cisco-voip@puck.nether.net
> Subject: [cisco-voip] VIC-2FXO analog Ground Start Distance Limit
>
>
> How far away from the CO can a Voice Gateway be with Ground Start Analog
> lines?
>
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