[cisco-voip] Need Help on CME Installation

Wed Jan 27 16:16:54 EST 2010

Matt - you're spot on.

If there are multiple DID's being delivered via POTS lines, the carrier is
likely sending them as DID trunks, not traditional analog lines.  The proper
P/N for terminating these is going to be the VIC2-FXS/DID.

My *guess* is that the carrier probably has a single trunk group (15 DID's)
arriving on the BRI and the other 3 trunk groups split across the 13 POTS
lines.

I do agree with the other matthew (wow...lots of us in this thread) that in
most metro markets the breakeven point for PRI vs. POTS service is between
6-10 POTS lines - I'd highly suggest that if time allows you investigate
migrating to a PRI instead of DID trunks.  If not, then you'll need the
VIC2-4FXS/DID cards if these are indeed DID trunks.

Matthew Saskin
msaskin at gmail.com
203-253-9571

July 18, 2010 - 1500m swim (in the hudson), 40k bike, 10k run
Please support the Leukemia & Lyphoma Society
http://pages.teamintraining.org/nyc/nyctri10/msaskin

On Wed, Jan 27, 2010 at 3:58 PM, Matt Slaga (US)
<Matt.Slaga at us.didata.com>wrote:

>  Someone can correct me if I am wrong, I run into FXO DID numbers about
> once a few years.
>
>
>
> I believe you would need VIC2-4FXS/DID cards to allow the incoming DTMF DID
> indicators to come through properly.  Otherwise, the basic FXO cards will
> not pick up the appropriate DTMF tones indicating what DID the call is
> destined for.
>
>
>
> You are definitely on the right track though!
>
>
>
> *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.
>
>
>
> [image: 2C_CharLogo_Tag_CMYK]
>  ------------------------------
>
> *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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