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New Member

Cisco VIC-2FXS Use in Europe (Single Line Phone)

Hi, I have a Cisco 2650 running:

IOS C2600-BINS-M), Version 12.2(13)T4.

Installed is NM2V

VIC-2FXO-EU Ports 1/0/0 & 1/0/1

VIC-2FXS ports 1/1/0 & 1/1/1

I can use an analogue phone in port 1/1/0 and get dial tone. I try in 1/1/1 and no dial tone. Hardware seems OK from diags etc.

Checked around and see note from cisco at http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a0080094fac.shtml

This states that "Port zero on the VIC-2FXS card is designed to accommodate a United States style two-line phone, instead of the usual European style one-line phone" and that certain cable configs can cause issues. I tried the suggestion of a straight thru 2 wire (3&4) RJ11 cable with no joy, I have one 4-wire cable pinned as 2<->5 and 3<-4> which gives me working port at 1/1/0 but nowhere else, no other cable I have tried will work. My question is, can I actually get both ports to work with a known cable config, or am I limited to the one port on the VIC-2FXS without a US 2 line analogue phone?

Sorry this is so long, many thanks for taking the time to look.

Best Regards,

Steve.

20 REPLIES
Silver

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

The components required to support analog Foreign Exchange Station (FXS) or Foreign Exchange Office (FXO) voice ports on the Cisco 2600, 3600 and VG200 series platforms include these options:

Voice Network Module (NM-1V or NM-2V): This houses the FXS or FXO Voice Interface Card (VIC) and provides the Digital Signal Processing (DSP) functionality to digitize and compress analog calls.

FXS or FXO VIC (VIC-2FXS, VIC-2FXO)

Refer the URL: Cisco Interface Cards for Cisco Access Routers:

http://www.cisco.com/en/US/docs/routers/access/interfaces/ic/hardware/installation/guide/oview_ic.html

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

ivillegas, many thanks for taking the time to reply. Whilst it does not fully answer my question it is nevertheless a very useful link.

I have tried a straight thru 2 wire RJ11 and the unit does not perform as expected.

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

What I have found related your question, you can up the port zero as two line phone, but port 1 will be shut.

This link will help you, hopefully you have already gone through this:

http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a0080094fac.shtml

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

bilashece, Thanks have looked at that, I am in the process of making up cables etc to try and see if those I have have issues. To-date only a 4wire cable seems to work with port0, I cannot get port 1 up on either of my 2 port VIC-2FXS interface modules. One on a 2600 and the otehr on a 1751V

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Please keep posted if you get success :)

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Steve,

What does the config (pertaining to your VIC-2FXS look like? Does config on 1/1/1 mirror that of 1/1/0?

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

t00832112 - I am still back at the physical tests, because my original configs did not work (sorry I erased it all and restarted from the cabling).

===========

Cable Tests

===========

OK I made a few cables up and tested some scenarios on a 1750V:

2 Wire Straight-Thru cable using pins 3-3 and 4-4 into port 2/0. A BT Converse 220 phone does *NOT* generate the tone when this configuration is used. A cable tester shows I do have voltage on pin 3, but the loop is not made when the handset is lifted. Show voice port summary indicates both ports remain on-hook with handset lifted.

2 Wire Straight-Thru cable using only pins 2-2 and 5-5 into port 2/0. A BT Converse 220 phone *DOES* generate the tone when this configuration is used. A cable tester shows I do have voltage on pin 2, and the loop is made when the handset is lifted. Show voice port summary indicates port 2/1 (note - not 2/0) is now off-hook when the handset is lifted.

4 Wire Straight-Thru cable using pins 2-2, 3-3, 4-4, 5-5 into port 2/0. A BT Converse 220 phone *DOES* generate the tone when this configuration is used. A cable tester shows voltage from the FXS port is up on pin 2 and 3. Show voice port summary indicates *both* ports 2/0 and 2/1 are now off-hook when the handset is lifted.

4 Wire Straight-Thru cable using pins 2-2, 3-3, 4-4, 5-5 into port 2/1. A BT Converse 220 phone does *NOT* generate the tone when this configuration is used. A cable tester shows voltage from the FXS port is up on pin 3 only. Show voice port summary indicates both ports remain on-hook with handset lifted.

=========

Cisco Say

=========

Cisco take from tac case: http://www.ciscotaccc.com/voice/showcase?case=K12933148

Port 0 on a VIC-2FXS is designed to accommodate a U.S.-style two-line phone, instead of the more common European-style one-line phone. In addition to pins three and four being used, pins two and five are also monitored by the voice port. If you get a phone handset of unknown origin, it is possible that pins two and five are wired to allow last number recall or call forwarding. If this is the case, port 0 on the VIC assumes you have a two-line phone, and it shuts down port 1 automatically.

Resolution: To remedy this situation, be sure only two wires are used on your RJ11 cable from the gateway to the phone. Verify that the cores in the RJ11 add up to two, and that they are the middle two wires. If you have a four-pin RJ11, then it would be pins two and three. If you have a six-pin RJ11, it would be pins three and four.

The following schematic shows port B with the following pin-out:

Pin 1 NC

Pin 2 port A tip

Pin 3 port B ring

Pin 4 port B tip

Pin 5 port A ring

Pin 6 NC

==============

Current STatus

==============

This 'remedy' simply does not work for me. I am not able to get a tone from both ports under any wiring scenario that I choose, in fact I am not able to get a tone from port x/1 under any circumstances.

Another thing, this is the same on my second FXS card which is on a Cisco 2600 and which displays *exactly* the same issues (albeit the port / module nomenclature is different).

=========

Questions

=========

Should I get a tone from port x/1 with just the physical cabling in place as I do from port x/0?

Is there something odd about phones in the UK with respect to FXS?

Is it actually worth my time pursuing this given that I am trying to build a CCVP Lab, or just get on with the course stuff? [Why am I asking you?] :-)

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Sat and examined my notes and my conclusion is that the Cisco view is correct technically, and if the phone *did* work if pin 3 on port x/0 made the circuit (and produce a tone) when the handset was lifted, then the pin on port x/1 would be OK because pin 3 on that port remains active.

I am still very puzzled as to why the handset does not make the circuit (or at least tone), and why port x/1 never produces a tone regardless of the status of port x/0.

If anyone can shed any light on this I would be very grateful.

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

You are the only king of this R&D I think. :)

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Well guys it has taken my 4 hours tonight but I believe I have an answer. Some tests I did with the BT Converse 220 phone (lets call this a UK phone) and a SMART Ohmmeter / Voltmeter suggested that the UK phone was using pins 2 & 5 on the RJ11 to perform the task I was expecting on pins 3 & 4 (centre).

I decided to do some research and found these sites:

http://www.gbnet.net/net/uk-telecom/p3-1.html

http://www.telephonesuk.co.uk/wiring_info.htm

In a nutshell this confirmed my thoughts, that the speech/ring combination on the UK phone was pins 2 and 5.

Now we already know that the Router FXS is expecting the signal on pins 3 & 4 so the thing to do is make an RJ11 that meets that need, hence:

FXS Wiring:

===========

Router Pin 3 <----> UK Phone Pin 2

Router Pin 4 <----> UK Phone Pin 5

++

OR

++

Router Pin 3 <----> UK Phone Pin 5

Router Pin 4 <----> UK Phone Pin 2

*****The Polarity makes no difference, though one of these will be the correct way*****

========

Testing

========

Obviously the end with the 3 & 4 connectors has to go to the Router FXS Port, the other end 2 & 5 to the UK Phone.

Tests worked for FXS Ports 0 & 1 on both of my Routers.

It's been a hell of a ride, a pain even, but well worth it. Hope it helps someone else in the same predicament. Cheers for listening and your input.

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

hi StephenLeach, what's the result ultimate?

Did you able to use the port 1?

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

YES!

Can use either port in isolation, or both ports at the same time, get a dial tone from both all of the time with this cable configuration.

Would suggest that whichever way you choose to do the cable pinout config, you pick the same for all ports and not mix and match!

Cheers

Steve

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Using the POTS dial peer the actual dialing works fine, however on some UK Phones you do not get ringing (on others you do) but if you pick up the handset then the call is actually established fine.

There seems to be a further difference in some UK phones (as opposed to the USA type) in that they also need a ring signal on pin 3 as a 'bell'.

I am not sure how to provide this in the configuration from an FXS, and to be honest since I have two phones that work (and ring), I don't see a need to pursue it as a further fix. It is something to be aware of, and if anyone else has input, please add it here.

Regards,

Steve.

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Hi Stephen (et al),

I hope that you might be able to assist me with some similar issues I am experiencing with a 1760 + VIC-2FXS (made in Mexico).

Just like yourself, I am attempting to hook up analogue UK phones (BT Converse 1100) to ports 3/0 and 3/0 (the WIC-2FXS).

I have followed your advice in previous posts and have not managed to make a great deal of progress. At present I have a cable mapped as follows:

Router FXS Pin 3 to Phone Pin 2.

Router FXS Pin 4 to Phone Pin 5.

I have also reversed the above mapping to take into account polarity. Both versions result in the handset constantly ringing and a dial tone which sounds like a 'laser gun' - it feels to me as if the voltage/frequency is not correct for the UK phones. The result is the same for both port 0 and 1 on the 2FXS card.

The reason for locating your posts in the first instance was because I felt that my RJ11 cables were probably not wired correctly for UK use; hence I spliced up my own cables as per your instructions. I have found the same result no matter what cable type I use (i.e. 4 pin straight, 2 pin straight, etc.)

Please can someone advise me as to where I may be going wrong? I am more than happy to provide further information.

Many thanks for your time,

Tom Ranson

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Hi Tom,

I'll certainly try to help - it seem very odd that we have different results for the same type of config / environment!

Just to confirm:

------] Pin2<------------->Pin4 [--------

Phone ]...............................[ Vic2FXS

------] Pin5<------------->Pin3 [--------

Where the 2<->4 & 5<->3 can be 2<->3 & 5<->4?

I still have the original cables etc so i can check again, but it all works with both a 2600 & 1751V so I am a little puzzled to say the least!

One other thing, what configuration regarding the FXS ports is on the router at the moment? The router should be fine as the 1760 accommodates the Voice modules in slots 2 & 3.

Lastly, you know this is a working phone or do you have a different model you can test? To be honest I found having base stations and hands free phones much better for testing.

I guess (like my testing) you cannot know the FXS ports work unless this proves it.

Best Regards,

Steve.

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Hi Tom,

Checked cabling and all good - I have tested this on Converse 1200, 220, BT STudio 1500 and BT Diverse 3010 (last two are the base station types). They work as expected with the cables as configured.

As an aside, I wired up my FXO ports to the wall jack using the FXO:3<->4 to BTJACK:2<->5 and can get a dial out to the PSTN using a suitable configured dial peer.

As things stand it sounds more like the phone or FXS you have than anything else, but more than willing to try to help further - get the configs etc and let's see!

BTW - if you are using a 4 wire cable, the two centre wires are 3-4 (usually red/green) and the two outside (usually yellow/Black) are 2/5. Sorry if that is obvious, it wasn't to me when I started.

Best Regards,

Steve.

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Hi Steve,

Many thanks for you prompt reply and much apprieceated advice- I am very much in the early stages of CCVP study.

My understanding is there is very little (or no) configuration required on the voice-ports in order to be able to obtain a working dial tone (and not have a phone that's constantly ringing!). I do not have the equipment with me at this moment but will be looking at it in closer detail this evening- I have remote console to the router though.

Would it be at all possible for you to post a sanitised copy of the relivent parts of your config from your 1751 that I may use as point of comparison?

I have read posts of other users who have experienced the same issue as I am with VIC-2FXS's made in Mexico, and that the problem is not apparent with the same VIC's made in the USA - those users have suggested the the 'laser gun' type dial-tone may be due to the companding-type being set to u-law (American) as opposed to a-law (European) - however, my IOS does not have the companding-type command available.

The following output of "show voice port 3/0" may be of use:

Foreign Exchange Station 3/0 Slot is 0, Sub-unit is 3, Port is 0

Type of VoicePort is FXS

Operation State is DOWN

Administrative State is UP

The Last Interface Down Failure Cause is Administrative Shutdown

Description is not set

Noise Regeneration is enabled

Non Linear Processing is enabled

Non Linear Mute is disabled

Non Linear Threshold is -21 dB

Music On Hold Threshold is Set to -38 dBm

In Gain is Set to 0 dB

Out Attenuation is Set to 3 dB

Echo Cancellation is enabled

Echo Cancellation NLP mute is disabled

Echo Cancellation NLP threshold is -21 dB

Echo Cancel Coverage is set to 64 ms

Echo Cancel worst case ERL is set to 6 dB

Playout-delay Mode is set to adaptive

Playout-delay Nominal is set to 60 ms

Playout-delay Maximum is set to 250 ms

Playout-delay Minimum mode is set to default, value 40 ms

Playout-delay Fax is set to 300 ms

Connection Mode is normal

Connection Number is not set

Initial Time Out is set to 10 s

Interdigit Time Out is set to 10 s

Call Disconnect Time Out is set to 60 s

Supervisory Disconnect Time Out is set to 750 ms

Ringing Time Out is set to 180 s

Wait Release Time Out is set to 30 s

Companding Type is u-law

Region Tone is set for GB

Analog Info Follows:

Currently processing none

Maintenance Mode Set to None (not in mtc mode)

Number of signaling protocol errors are 0

Impedance is set to 600r Ohm

Station name None, Station number None

Translation profile (Incoming):

Translation profile (Outgoing):

Voice card specific Info Follows:

Signal Type is loopStart

Ring Frequency is 25 Hz

Hook Status is On Hook

Ring Active Status is inactive

Ring Ground Status is inactive

Tip Ground Status is active

Digit Duration Timing is set to 100 ms

InterDigit Duration Timing is set to 100 ms

Hookflash-in Timing is set to max=1000 ms, min=150 ms

Hookflash-out Timing is set to 400 ms

No disconnect acknowledge

Ring Cadence is defined by CPTone Selection

Ring Cadence are [4 2] [4 20] * 100 msec

Ringer Equivalence Number is set to 1

Many thanks once again,

Tom Ranson

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Tom,

Apart from mine being DORMANT and yours DOWN, and the Ring Tone and Cadence difference, I see no difference in the Voice Port....and BTW the FXS card I am using is 'Made in Mexico' so we have parity there!

C1750V#show voice port 2/1

Foreign Exchange Station 2/1 Slot is 0, Sub-unit is 2, Port is 1

Type of VoicePort is FXS

Operation State is DORMANT

Administrative State is UP

No Interface Down Failure

Description is not set

Noise Regeneration is enabled

Non Linear Processing is enabled

Non Linear Mute is disabled

Non Linear Threshold is -21 dB

Music On Hold Threshold is Set to -38 dBm

In Gain is Set to 0 dB

Out Attenuation is Set to 3 dB

Echo Cancellation is enabled

Echo Cancellation NLP mute is disabled

Echo Cancellation NLP threshold is -21 dB

Echo Cancel Coverage is set to 64 ms

Echo Cancel worst case ERL is set to 6 dB

Playout-delay Mode is set to adaptive

Playout-delay Nominal is set to 60 ms

Playout-delay Maximum is set to 250 ms

Playout-delay Minimum mode is set to default, value 40 ms

Playout-delay Fax is set to 300 ms

Connection Mode is normal

Connection Number is not set

Initial Time Out is set to 10 s

Interdigit Time Out is set to 10 s

Call Disconnect Time Out is set to 60 s

Supervisory Disconnect Time Out is set to 750 ms

Ringing Time Out is set to 180 s

Wait Release Time Out is set to 30 s

Companding Type is u-law

Region Tone is set for GB

Analog Info Follows:

Currently processing none

Maintenance Mode Set to None (not in mtc mode)

Number of signaling protocol errors are 0

Impedance is set to 600r Ohm

Station name None, Station number None

Translation profile (Incoming):

Translation profile (Outgoing):

Voice card specific Info Follows:

Signal Type is loopStart

Ring Frequency is 25 Hz

Hook Status is On Hook

Ring Active Status is inactive

Ring Ground Status is inactive

Tip Ground Status is active

Digit Duration Timing is set to 100 ms

InterDigit Duration Timing is set to 100 ms

Hookflash-in Timing is set to max=1000 ms, min=150 ms

Hookflash-out Timing is set to 400 ms

No disconnect acknowledge

Ring Cadence is defined by Cadence Pattern01

Ring Cadence are [20 40] * 100 msec

Ringer Equivalence Number is set to 1

C1750V#

I just removed the FXS module and put it in my 1760. I know I will probably get problems.......and indeed I did as I have no DSP resources in the 1760:

*Mar 1 00:00:12.500: %IPM_C54X-3-NODSP: Can't get dsp resources

So it does not enable the Voice Ports.

You should not see errors in your startup and I am guessing you do not. Your ports are 'administratively up' so you have not got them shutdown by accident. Only thing as stated above is the 'DOWN' state, as bth my 1750V and 2610 show DORMANT as the status.....best you check that from home I think? I can't see anything obvious other than that at the moment.

Snip of my config for voice ports on 1750V:

voice-port 2/0

ring cadence pattern01

cptone GB

!

voice-port 2/1

ring cadence pattern01

cptone GB

Nothing to sanitize really - it's all innocuous stuff in a test lab.

Best Regards,

Steve.

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Hi Steve,

Turns out that I wasn't going mad; it would appear that I had a PVDM/DSP issue. After removing the PVDM-12 and power cycling, and then reinstalling it again etc. we were good to go and the voice-port status now reports as DORMANT and everything works as expected. It was a very strange problem, which probably ties in with the 'laser gun' audio output etc.

I'm now using some nice factory made USA to UK (RJ11 to UK socket - maps 3and4 to 2and5) convertors in conjunction with the original BT phone cables. All is working as expected ;-)

Many thanks for your help.

Tom

New Member

Re: Cisco VIC-2FXS Use in Europe (Single Line Phone)

Don't think I added much really Tom (the Voice Port status was about all) but I'm glad you are up and running.

Like you I am on CCVP track and taking Cvoice 642-436 in about 5-6 weeks - already have QoS from CCIP. Lab is going well, read the Cisco Express book (in fact am now re-reading) and building knowledge base almost daily. I also have the CBT Nuggets course by Jeremy Cioara which I highly recommend as it goes through all of the subject matter with examples etc, many of which I can reproduce at home.

Good luck with your studies

Best Regards,

Steve

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