Paging Integration - FXS or FXO

Answered Question
Jul 17th, 2009

We currently have Bogen and Valcom paging amplifiers connected to our Nortel Option 11. We would like to move this paging gear over to a Cisco 2811 Gateway/CUCM 4.1(3). How do I determine what type of VWIC is required in the gateway to support this configuration?

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Correct Answer by rob.huffman about 7 years 4 months ago

Hey Michael,

Hahaha!! I wish I was a Cisco madman :)

OK, this final result does tell us what we need to know. That the current setup is actually using a Trunk or FXO style port. This means that the you can use either an FXS or FXO on the Cisco side as long as you order up the TAMB mid-point integration piece (very cheap $$). You should be good to go.

Cheers!

Rob

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Nicholas Matthews Fri, 07/17/2009 - 09:04

The best way would be documentation or determining what the old configuration was.

Barring that - if it is FXS you should be able to plug an analog phone into it and get dial tone.

Outside of finding some more information out, that would be the only test. If you already have a VIC2-2FXS you can try configuring it and seeing if that works.

hth,

nick

rob.huffman Fri, 07/17/2009 - 09:16

Hi Michael,

Just to add a note to the great tips from NIck (+5 points here Nick:)

If you can;

Access the Nortel

Go into Load 20

Prt

PAG

The output may look like this;

REQ: PRT

TYPE: PAG

TN

CUST 0

DATE

PAGE

DES

TN x.x.x.x

TYPE PAG

CUST 0

RTMB 1 1

SIGL EAM

STRO IMM

SUPN NO

CLS UNR DTN CND WTA LPR

P10 VNL

DATE NO DATE

If it is set for E&M we will then know.

But more than likely it will look something like this;

TN x.x.x.x

Type Pag

cust 0

xtrk xut

Timp 600

BIMP 3com

RTMB 4 1

Sigl LDR

Stro IMM

Supn yes

Ast no

IAPG 0

CLS unr,dtn,cnd,wta,lpr,thfd, p10,ntc

Date No date

natc

DTC 001

In this case where a Nortel Paging card is being replaced, you will need some "mid-span" type device. In the Nortel setup with the XUT set for Paging, when someone dialed DN xxxx the Paging Card would answer and just "Bridge" the Audio over to the Amp. All the Smarts so to speak are in the Nortel Paging Card (Ring detection, Audio Cut-through etc) so the equivalent is to use this Part with an FXS Port. This TAM-B is required in 99% of the cases I have seen.

Something like this;

http://www.camelectronics.com/botateacmo.html

Hope this helps!

Rob

mlitka Fri, 07/17/2009 - 09:30

Rob / Nick -

Thanks for the great direction here.

Rob -

I tried your Nortel commands and got the following:

>LD 20

PT0000

REQ: PRT

TYPE: PAG

TN

CUST 0

DATE

PAGE

REQ:

Any ideas?

Nicholas Matthews Fri, 07/17/2009 - 09:45

What's the exact Valcom / Bogen models? Fairly sure that you could find that type of information on a datasheet from the vendor.

-nick

rob.huffman Fri, 07/17/2009 - 10:31

Hi Michael,

The output from the Nortel is a "good" thing. This means that the input from the Option 11 was likely a 500/FXS type port and not an actual Paging trunk. You can see on page 3 of the manual in the link you sent, where the phone line is currently connected to the Bogen. Just to be sure you might want to trace the wiring back through the cross-connects to the Nortel TN to verify the port type. I'm pretty sure in this case you won't actually require any additional equipment to fire this up :)

If you know the DN of the Paging access you could also use;

LD 11

PRT

DNB

DN - xxxx

to see exactly what Port/type was being used.

Cheers!

Rob

mlitka Fri, 07/17/2009 - 10:46

Rob -

That is good news. Here is the output from the command you posted:

>ld 11

SL1000

MEM AVAIL: (U/P): 394779 USED: 195044 TOT: 589823

DISK RECS AVAIL: 425

TNS AVAIL: 88 USED: 212 TOT: 300

ACD AGENTS AVAIL: 292 USED: 8 TOT: 300

AST SET AVAIL: 100 USED: 0 TOT: 100

REQ: PRT

TYPE: DNB

CUST 0

DN 11

DATE

PAGE

DES

DN 11

TYPE RDB

ROUT 3

Does that make sense?

mlitka Fri, 07/17/2009 - 11:03

Here is an output from LD 21 for that RDB:

>ld 21

PT1000

REQ: PRT

TYPE: RDB

CUST 0

ROUT 3

TYPE RDB

CUST 00

DMOD

ROUT 3

DES PAG1

TKTP COT

PRIV NO

SAT NO

RCLS EXT

DTRK NO

PTYP ACO

AUTO NO

ICOG OGT

RANX NO

SRCH LIN

STEP

ACOD 11

CPP NO

TARG

CLEN 1

OABS

TIMR ICF 512

OGF 512

EOD 13952

DSI 34944

NRD 10112

DDL 70

ODT 4096

RGV 640

FLH 510

GRD 896

SFB 3

CRD 512

TFD 30

LEXT 100

SST 3 0

NEDC ETH

FEDC ORG

CPDC NO

SPCT IMM

HOLD 02 02 40

SEIZ 02 02

RGFL 02 02

RVSD 08 31

ILLR 02 02

CDR NO

MUS NO

MR NO

MANO YES

EQAR NO

FRL 0 0

FRL 1 0

FRL 2 0

FRL 3 0

FRL 4 0

FRL 5 0

FRL 6 0

FRL 7 0

TTBL 0

OHTD NO

PLEV 2

MCTS NO

ALRM NO

PAGE 002

ART 0

SGRP 0

AACR NO

rob.huffman Fri, 07/17/2009 - 11:19

Hi Michael,

Interesting setup :)

From

LD 21

REQ: LTM

CUST 0

ROUT 3

Output will be a TN x.x.x.x

Then from LD 11

PRT

TNB

TN x.x.x.x (from above)

This should show us our final results.

Cheers!

Rob

mlitka Fri, 07/17/2009 - 11:24

Rob -

You are a Nortel madman! Can't thank you enough.

Here is the output:

>ld 21

PT1000

REQ: ltm

CUST 0

ROUT 3

TYPE TLS

TKTP COT

ROUT 3

DES PAG1

TN 018 0 00 02 MBER 1 PAGE1

REQ: ****

OVL000

>ld 11

SL1000

MEM AVAIL: (U/P): 394779 USED: 195044 TOT: 589823

DISK RECS AVAIL: 425

TNS AVAIL: 88 USED: 212 TOT: 300

ACD AGENTS AVAIL: 292 USED: 8 TOT: 300

AST SET AVAIL: 100 USED: 0 TOT: 100

REQ: prt

TYPE: tnb

TN 018 0 00 02

SPWD

DATE

PAGE

DES

TN 018 0 00 02

TYPE COT

CDEN 8D

CUST 0

XTRK XUT

TIMP 600

BIMP 3COM

NCOS 0

RTMB 3 1

NITE

SIGL LOP

SUPN NO

AST NO

IAPG 0

CLS UNR DTN WTA LPR APN THFD

P10 NTC LOL

TKID

DATE 30 JUN 2008

Correct Answer
rob.huffman Fri, 07/17/2009 - 11:37

Hey Michael,

Hahaha!! I wish I was a Cisco madman :)

OK, this final result does tell us what we need to know. That the current setup is actually using a Trunk or FXO style port. This means that the you can use either an FXS or FXO on the Cisco side as long as you order up the TAMB mid-point integration piece (very cheap $$). You should be good to go.

Cheers!

Rob

mlitka Fri, 07/17/2009 - 11:46

So the Nortel side is an FXO style port and it sounds like this is the way to go from other posts.

Thanks for all your help!!

rob.huffman Fri, 07/17/2009 - 12:48

Hi Michael,

You are most welcome my friend! Have a nice summer weekend.

Go Stamps Go!

Cheers!

Rob

Next year the "Roughies" will be back!!

dgauthier Mon, 10/26/2009 - 12:47

Rob,

curious...so I am reading this thread...I have read in other cisco thread that Cisco FXS port could be used as well...

rob.huffman Mon, 10/26/2009 - 13:46

Hi David,

You are most correct my friend :) The more common connection for this would be on an FXS Port, you can use either an FXS or FXO on the Cisco side as long as you order up the TAMB mid-point integration piece.

Cheers!

Rob

dgauthier Tue, 10/27/2009 - 08:20

Rob,

what exactly is the 'mid-point' integration piece. I have the TAM-B unit, I have a C20 amp...all I get it RNA when calling the FXS port.

through show or debug commands...the FXS port lights up...I have connected a handset to the FXS ports...audio rings thru. so I know my CUCM and GW part is fine...

rob.huffman Tue, 10/27/2009 - 10:37

Hi David,

I was referring to the TAM-B as the "mid-point integration piece". Have you gone through the setup guide (I'm sure you have) and looked at the Dip-Switch settings for the Station Port config?

We need to get the TAM-B answering as a first step.

Rob

dgauthier Tue, 10/27/2009 - 11:27

Rob,

Yes...know the doc well. Been thru the DIP switches several times. Pretty simple config.

BTW...VIC3-2FXS/DID module should work fine...correct?

dgauthier Fri, 10/30/2009 - 06:18

Rob and crew,

My issue was solved with the Bogen TAMB. The vendor who installed the the TAMBB inadvertently hooked power (-VDC) onto the unit. My scenerio was station side (i.e. VIC3-2FXS/DID port). From the Bogen documentation...simply T&R from the FXS port into the TAMB. From the TAMB paging output into the local speak amp T&R...that is it.

Did some testing on the FXS port as well...the port floats at -44VDC to 0VDC during ring cycle. Initially, I thought that was insufficient voltage to drive the TAMB, since according to Bogen, that the TAMB input required -62VDC to -90VDC.

But after the vendor came on sight and removed the VDC Power...the TAMB fired right up. Now with that said...DIP switches on the TAMB must be in proper place.

For Station side use, confirmation tone is required, so S3 off, S4 on...S1/S2 is N/A, on S5 off. Aux switch on top of TAMB unit must be in proper position...see TAMB installation instructions, page 7.

Assuming all other wiring is done properly and CUCM programming done properly...things should work fine.

Anyways...just sharing some insight.

rob.huffman Fri, 10/30/2009 - 07:18

Hey David,

Thanks so much for posting back with your results! Glad to hear you got it working. + 5 points for this very kind follow-up :)

Cheers!

Rob

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