[cisco-voip] Need Help on CME Installation

Wed Jan 27 16:38:28 EST 2010

For normal telco lines, you would be correct.  However, the lines you are describing below require special cards.  The FXS/DID cards are a dual-purpose card that can be used both for FXS stations and analog DID incoming.

You might want to get on the phone with the telco providing the site's services and get more details on the port and DID configurations.  Nothing worse than finding these things out on cut day.

From: Kim, Hyoun S [mailto:Hyoun.Kim at chartercom.com]
Sent: Wednesday, January 27, 2010 4:30 PM
To: Matt Slaga (US); cisco-voip at puck.nether.net
Subject: RE: Need Help on CME Installation

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<mailto:Hyoun.Kim at chartercom.com>
Office: 615.217.6245
Fax: 615.217.6255

From: Matt Slaga (US) [mailto:Matt.Slaga at us.didata.com]
Sent: Wednesday, January 27, 2010 2:58 PM
To: Kim, Hyoun S; cisco-voip at puck.nether.net
Subject: RE: Need Help on CME Installation

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.

[cid:image001.jpg at 01CA9F6F.2758D5C0]
________________________________
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<mailto:Hyoun.Kim at chartercom.com>

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