[cisco-voip] Need Help on CME Installation

Wed Jan 27 16:38:02 EST 2010

Supposedly this office is currently under contract with the local Telco.
They wanted to go to a PRI late last year but the Cisco phone system
wasn't ordered at the time.  If they were to move to a PRI, then work
would have had to be done on the existing Nortel system (which is being
leased by the telco).  They didn't want to do that because they were to
eventually going to get that Cisco setup.  So it ends up that they
missed the deadline and they renewed the existing configuration for
another year.

So they are to get a PRI, but not until Dec 2010.  In which in that
case, we'll just get a VWIC PRI interface card.

Yeah, it's a big headache.  I miss doing setups with 1 or 2 PRIs.

As for the FXS/DID card... hmm.  I responded earlier, so I'll just paste
the same response.

I thought FXO was for connections coming from the telco & FXS were for
end-devices such as analog phones, fax machines, and modems.

Since the lines are coming from the telco to my router, wouldn't the
VIC2-4FXO card be the right card?

Hyoun Kim

Network Administrator I

Charter Media - East Division

640 Broadmor Blvd, Suite 80

Murfreesboro, TN 37129

Email: Hyoun.Kim at chartercom.com

Office: 615.217.6245

Fax: 615.217.6255

From: Matthew Loraditch [mailto:MLoraditch at heliontechnologies.com] 
Sent: Wednesday, January 27, 2010 3:03 PM
To: Kim, Hyoun S; cisco-voip at puck.nether.net
Subject: RE: Need Help on CME Installation

I've always been told the rule of thumb for saving money is more than 12
POTS lines get a PRI. Unless they have some reason to need all those
analog lines or contract issues I'd investigate that for your own
sanity. As for how all the numbers work you may need to check with the
carrier if you stay POTS, they could have rollover trunks setup or other
such things.

Also I think DID lines require an FXS/DID card. They aren't like regular
POTS. 

Matthew Loraditch
1965 Greenspring Drive

Timonium, MD 21093 
support at heliontechnologies.com <mailto:support at heliontechnologies.com> 
(p) (410) 252-8830
(F) (443) 541-1593

Visit us at www.heliontechnologies.com
<http://www.heliontechnologies.com>  
Support Issue? Email support at heliontechnologies.com
<mailto:support at heliontechnologies.com>  for fast assistance!

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Kim, Hyoun S
Sent: Wednesday, January 27, 2010 3:55 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Need Help on CME Installation

Some of you may remember me.  My employer has put me in charge of
installing Cisco VoIP solutions for various offices around the state.
I've installed 4 of them so far, roughly with 40-50 users at each
office.  I've been getting real comfortable with installing them but all
those offices utilized a PRI.  So configuration of the system was fairly
simple and if all was set up correctly, you could just unplug the PRI
from the old phone system and plug it into the Cisco router and
everything works just fine.

For my next office, things are somewhat different and I'm not sure how
to approach it.  I was told that the next office does not have a PRI.
I'm not 100% fluent in telephony, but their current Nortel system
utilizes 13 POTS lines, 1 BRI, and 4 trunk groups.  There are  15 DID
numbers each trunk group for a total of 60 DID numbers.

For the new router, (which is a C2821), I went ahead and requested 4
VIC2-4FXO cards.  Are these the right cards to get?  I didn't get the
BRI card because I'm going to see if the phone company can convert the
BRI to POTS lines to save some money.  So that should give me a total of
15 POTS lines to plug into my router.  

The DID numbers span from 9421 through 9480.  However, on the
information sheet, there are other numbers as well (which I'm assuming
are the actual POTS lines' numbers).  These numbers are all over the
place, such as 1101, 1103, 1119, 2562, 4400, etc.  When I dial them,
they are picked up by the Nortel automated system as if I were dialing
the direct line specified in the DID number range.  So my question is,
when I program the CME/CUE, do I just configure ephone-dn according to
the DID numbers and leave out those other numbers?  I'm just wondering
if the Telco forwards all these "other numbers" to that DID's "direct
line".  I know for the Autoattendent, you just use 1 number.

Is this the right way I should be going about this?

Thanks for any help and sorry for the long e-mail.

________________________________

Hyoun Kim * Network Administrator I - East Division

640 Broadmor Blvd * Suite 80 * Murfreesboro, TN 37129

' 615.217.6245 * ' 859.312.6941 * 7 615.217.6255 * * 
Hyoun.Kim at chartercom.com

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