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lap
New Member

IP Telephony problem in an office | Urgent, I need your help

Hello everybody,

I would like to introduce you my problem.

My company has a customer located in all Europe. They use a Cisco IP telephony solution. So Far everything is going well expect in one office located in France.

This office has the following number series : from +33 5 34 32 12 04 to 13 with +33 5 34 32 12 12 as the head/main number. Their service provider is France Telecom/Orange.

I did a debug isdnq931 and I called all the series of number from +33 5 34 32 12 04 to 13:

-I got a debug output (which I attach to this mail too) with works only with one number (0033 5 34 32 12 12) which is the main number of the series. But when I call this number I don t get the normal bip....2 sec....bip....2sec....bip, I hear nothing and then after 10 seconds, I hear a series op bip telling that the network is busy. if you look in the debug there are some errors actually.

-When I call the others numbers (12 04 to 1213 except 1212) I hear this french message : "Orange vous informe que le numero demande n est pas attribue" or translated in english :"Orange informs you that the request number is not available". And I don t get any debug activity, only with the main number (debug attached to the message).

On one hand, my customer says that the problem is coming from France Telecom because they say that they have tested the ISDN line and there are working properly: They say that France Telecom doesn't t root the numbers to them.

On the other hand, France Telecom says that everything is OK on their side.

That is why next Thursday I will go to our customer office and meet with a technician from France Telecom to try to fix the problem.

Where do you think the problem is coming from and how I can fix it? Is it really France Telecom who doesn't t root the numbers?

I would appreciate so much your help as I really want to fix this problem. My experience is more routing/switching but with your help I can maybe fix the problem.

Best regards,

AT

P.S: I did write in this forum 2 weeks ago but I didn't t have any running-config to attach and now I have both running config and debug which I attach to this e-mail.

3 ACCEPTED SOLUTIONS

Accepted Solutions
Cisco Employee

Re: IP Telephony problem in an office | Urgent, I need your help

OK, the call comes in for the 1st time:

Incoming Dial-peer=999011

Outgoing Dial-peer=211

you receive Disconnect Cause=1 0x01

1 = Unallocated (unassigned) number. This cause indicates that the destination requested by the calling user cannot be reached because the number is unassigned. This number is not in the routing table, or it has no path across the ISDN network.

then you try again using this dial-peer:

Outgoing Dial-peer=212

which again receives:

Cause Value=1

(most probably you have 2 servers and 2 dial-peers with same destination pattern but different preference)

then the call is hairpinned 2 times:

Outgoing Dial-peer=901

Outgoing Dial-peer=902

and at last you receive disconnect cause:

Disconnect Cause=41

0x41 = Bearer capability not implemented. The cause could be one of the following occurrences:

i would advise you to check the config under CUCM to make sure the significant digits under GW config is set to the right amount of digits or to use translation rules to make it happen.

HTH

javalenc

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

The number of digits we are talking about are the extension numbers used int he offices.

From your Attachments it seems like you are using 4 digits extesnions. Because the mask used on youroutgoing calls are XXXX..which means that the numbers 44299 + the 4 digit extension is what will show as the caller id on outgoing calls.

So you should set your inboud calls on your gateway to 4 digits.

You can confirm the number of digits by doing the following:

If you go to CCMadmin page>>device>Phones> click on find, click on phones that are registered. On your left hand side you should see the directory number information.

This is how you know the number of digits you are using.

Eg. if yoour phones have extension 5432 for example, you are using 4 digits, if its 12544 you are using 5 digits.

So you should set the inbound calls on the gateway to the number of digits you are using

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Silver

Re: IP Telephony problem in an office | Urgent, I need your help

Hi Laurent,

1) Exactement!!

2) that s exactly what you should do.

post the result back when you finished.

This is why i love this forum, you get all experts advices for 0 coast :).

48 REPLIES
Cisco Employee

Re: IP Telephony problem in an office | Urgent, I need your help

guess you're using the BRIs for the incoming calls. by the description it would sound to me that the telco is not sending out the isdn setup to your GW for the call to work.

if you can see output for a debug isdn q931 only on one number that means that the connection is fine and that only that particular number is being routed to your GW by the telco.

you can try the same test but trying a debug voip ccapi inout and see if you get any output, if you do not see anything then there are good chances that the telco is not routing those numbers to your connection

with the telco guy on site you can show him that only main number is routed to your GW and that any other number is not reaching your GW so they can look at it

HTH

javalenc

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

thanks a lot for your help. One thing i don t understand is why i don t get any tone when i call the main number and then network busy. Moreover if u look at the debug u see some errors, do u know why? Tomorrow i will try the other that u told me and i ll get back to u. Regards.

lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Hi Javalenc,

I did the debug voip ccapi inout that you told me which I attach to this message. Hope this help.

I am looking forward to hearing from you.

Regards,

A

Cisco Employee

Re: IP Telephony problem in an office | Urgent, I need your help

calling and called number??

javalenc

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Called number +33 534321212

Calling number +45 42140459

Re: IP Telephony problem in an office | Urgent, I need your help

Hy Guys,

i read through the logs. I've got one question?

First the call goes throug thes 2 dialpeers

dial-peer voice 211 voip

dial-peer voice 212 voip

But after that one from this dialpeer is matched

dial-peer voice 901 pots

dial-peer voice 902 pots

and the call ist routed to the pstn.

isn't it so javalenc

Cisco Employee

Re: IP Telephony problem in an office | Urgent, I need your help

OK, the call comes in for the 1st time:

Incoming Dial-peer=999011

Outgoing Dial-peer=211

you receive Disconnect Cause=1 0x01

1 = Unallocated (unassigned) number. This cause indicates that the destination requested by the calling user cannot be reached because the number is unassigned. This number is not in the routing table, or it has no path across the ISDN network.

then you try again using this dial-peer:

Outgoing Dial-peer=212

which again receives:

Cause Value=1

(most probably you have 2 servers and 2 dial-peers with same destination pattern but different preference)

then the call is hairpinned 2 times:

Outgoing Dial-peer=901

Outgoing Dial-peer=902

and at last you receive disconnect cause:

Disconnect Cause=41

0x41 = Bearer capability not implemented. The cause could be one of the following occurrences:

i would advise you to check the config under CUCM to make sure the significant digits under GW config is set to the right amount of digits or to use translation rules to make it happen.

HTH

javalenc

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Hi Javalenc,

Thank you very for your help and your great advice.

I have been under the call manager then gateway and I did some print screen which I attach to this post. What do you think?

Best regards,

A

VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

How many number of digits do you use in your internal extensions?

You should set the number under incoming calls on thje gateway..change the significant digit from all to whatetever number you use internally

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Silver

Re: IP Telephony problem in an office | Urgent, I need your help

Hi Laurent,

from the debug you provided, your Gateway is passing all digits to the Callmanager (5 34 32 12 xx), so what you need to do is figure out how many digits are used internally and if you are using Translation pattern to route inbound Calls. If this is a new installation, you need to set this up, for example if you want to use 4digits internally (12xx), you just click on the Significant digit on the Gateway configuration and set it to 4 which will mean your gateway will pass the 4 digits from the right (ie 12xx) to your Callmanager, you then set up new DNs with 12xx.

HTH...

lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Hi Zinedine,

1)Actually I don t know how many digits are used internally. Can check this in the Call Manager? If yes where?

2) then I looked if there was a translation patern for this shop in the CM and I didn t see any. Only for one shop, the one in Paris. They have other shops in France (4 in total including Paris) but they don t use translation patern only for Paris. And the other shop are working find.

3)Then regarding the significant digit on every shop, in INBOUND CALLS, the field significant digits is set to all.

4) But regarding OUTBOUND CALLS, the field caller ID DN is set to : 15325XXXX for Paris and 44299XXXX for Aix, for Toulouse there is nothing in this field.

I attach 2 screens where you can see that.

I am looking forward to hearing from you.

Best Regards,

NTH

VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

The number of digits we are talking about are the extension numbers used int he offices.

From your Attachments it seems like you are using 4 digits extesnions. Because the mask used on youroutgoing calls are XXXX..which means that the numbers 44299 + the 4 digit extension is what will show as the caller id on outgoing calls.

So you should set your inboud calls on your gateway to 4 digits.

You can confirm the number of digits by doing the following:

If you go to CCMadmin page>>device>Phones> click on find, click on phones that are registered. On your left hand side you should see the directory number information.

This is how you know the number of digits you are using.

Eg. if yoour phones have extension 5432 for example, you are using 4 digits, if its 12544 you are using 5 digits.

So you should set the inbound calls on the gateway to the number of digits you are using

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Hi and thanks for your reply,

I think I am using 4 digits (see attachement).

The thing is that the other location have the significant digit in INBOUND CALLS set to all and no 4.

Then when I call the main number (see previous post, the only which I get a debug output from ) I don t get any tone and I don t know why?

Thanks for your help.

Cisco Employee

Re: IP Telephony problem in an office | Urgent, I need your help

you're using 4 digits for dial plan, if other locations do not have that set then must probably they have a translation pattern to strip digits, there are several ways to do this but the easiest and the best practice is to strip them on the GW directly. i think that you should concentrate only on 1 location or go thru the WHOLE config of the other site to compare because just looking at the GW is not enough.

you do not get anything because you're DN is only 4 digits but you're sending more digits because nothing is stripping extra digits and this is assuming you have DIDs. are we talking about DIDs???

HTH

javalenc

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

Hi,

There is no point going back and forth on this, from your debug output

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0x82

Calling Party Number i = 0x2183, '685408197'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '534321212'

Plan:ISDN, Type:National

Sending Complete

and your config...

dial-peer voice 211 voip

description - Primary Call Manager -

preference 1

destination-pattern 5343212..

voice-class codec 1

voice-class h323 1

session target ipv4:10.45.0.211

Your telco is sending 9 digits to you,

Called Party Number i = 0xA1, '534321212'

There is no way this will work unless you set the inbound digits on your gateway to 4, so callmanager can strip off 53421..and ring extension 1212.

This is simple. Just do this!

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Ok so if I understand the whole situation there are 2 problems:

1) The first is that the telco is not sending the whole serie of number to my custumer, only the main number finishing by 1212 ( we can see that in the debug. So I have to tell the telco to send me the other numbers.

2) the second problem is that for this number finishing with 1212 I don t get any tone because the config in the CM under gateway is no set correctly and I should set the inbound digits in the gateway to 4.

Is that right?

Later today I will set the inbound digits to 4 and make a debug and then come back to you with a feedback.

Then we can close this topic. Again thanks for your help to you all. You are great.

Best regards,

A

Silver

Re: IP Telephony problem in an office | Urgent, I need your help

Hi Laurent,

1) Exactement!!

2) that s exactly what you should do.

post the result back when you finished.

This is why i love this forum, you get all experts advices for 0 coast :).

VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

Laurent,

I dont understand what you mean byt he telco not sending your customer the whole series of number.

You dont need to tell the telco to send any other number. The number the telco is sending and your config are correct..

ally ou need to do is change the config on callmanager to 4 digits!!!!!

NB: If the telco changes the number he is sending to you..... You will have to change your config to match whatever the telco sends.

AT the moment your gateway config and the 9 digits the telco is sending is ok! Just change the digits on callmanager to 4!

Like Zin said,

always remember to appreciate guys that spend time to help!

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"

Re: IP Telephony problem in an office | Urgent, I need your help

Hy Guys!

i think he means the following.

Some one is Calling +33 5 34 32 12 12 + a 4 digits DN

and when you look into the debugs you can see that the telco isn sending the DN (In AUSTRIA you could tell the Telco do don't send the DN)

so no phone is ringing when a custommer calls the +33 5 34 32 12 12 + a 4 digits DN

we do the follwing

voice translation-profile INCALL

translate called xx

voice translation-rule xx

rule 1 /^$/ /internal DN/

rule 2 /^0/ /internal DN/

This is bound to every voice port

voice-port 0/0/0

translation-profile incoming INCALL

compand-type a-law

cptone AT

!

So if nothing is called it would go to the DN you would like

cheers Floh

lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Hi,

So I did change in the CM under the gateway; the significant digit from all to 4 (I attach a screen of the changes I have made under the CM). I then click restart GW, no reset GW. Then I did a debug ISDN q931 which I attach to this post.

I call this number 05 34 32 12 12 (main number) from this number 06 85 40 81 97. It is the same then before when I call this number I cannot hear any tone but I can see that I get a debug output, then after 10 seconds I get busy network tone.

-aokanlawon : Now I think I understood. Is because the serie of number goes from +33 5 34 32 12 04 to 13 and I thought that the telco should send all the serie but what you mean is the telco is sending 53432 and then the CM takes care of sending the right extension which goes in this case from 1204 t0 1213, is that right?

The problem is that even after I have changed the significant digits to 4 the situation is still the same, if I try to call any other number (not 0534321212) from 0534321204 to 0534321213 I get this message in french : "Orange informs you that the request number is not available" and I don t get any debug activity. Maybe I should restart the gateway physically after having set the 4 significant digits?

Best Regards,

Laurent

aokanlawon : Don t worry, I will of course appreciate guys that spend time to help!

VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

Laurent,

Now you are in good shape and we can troubleshoot further

1. The called number 53432121 is sent by your telco and delivered to callmanager, callmanger strips 53432 and tries to ring ext 1212..this is what I am saying.

2. There is a problem with your isdn circuit..

from the debug

ul 16 11:28:35.444: ISDN BR0/0/0 Q931: RX <- CALL_PROC pd = 8 callref = 0xC6

Channel ID i = 0x8A

Jul 16 11:28:44.920: %MARS_NETCLK-3-CLK_TRANS: Network clock source transitioned from priority 10 to priority 1

Jul 16 11:28:51.060: ISDN BR0/0/0 Q931: RX <- DISCONNECT pd = 8 callref = 0xC6

Cause i = 0x8492 - No user responding

Jul 16 11:28:51.068: ISDN BR0/0/0 Q931: TX -> DISCONNECT pd = 8 callref = 0xC1

Cause i = 0x80A9 - Temporary failure

Jul 16 11:28:51.228: ISDN BR0/0/0 Q931: RX <- RELEASE pd = 8 callref = 0x41

Jul 16 11:28:51.232: ISDN BR0/0/0 Q931: TX -> RELEASE pd = 8 callref = 0x46

Jul 16 11:28:52.296: ISDN BR0/0/0 Q931: RX <- RELEASE_COMP pd = 8 callref = 0xC6

Jul 16 11:28:52.308: ISDN BR0/0/1 Q931: Applying typeplan for sw-type 0x1 is 0x2 0x1, Calling num 685408197

Jul 16 11:28:52.312: ISDN BR0/0/1 **ERROR**: handle_l2d_srq_mail: Layer 1 inactive

Jul 16 11:28:52.364: %LINK-3-UPDOWN: Interface BRI0/0/1, changed state to up

Jul 16 11:28:55.524: ISDN BR0/0/0 Q931: RX <- RELEASE pd = 8 callref = 0x41

Cause i = 0x82E6333038 - Recovery on timer expiry

Jul 16 11:29:00.316: ISDN BR0/0/1 Q931: L3_ShutDown: Shutting down ISDN Layer 3

Jul 16 11:29:00.368: %LINK-3-UPDOWN: Interface BRI0/0/1, changed state to down

Jul 16 11:29:15.004: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0/0/0, TEI 79 changed to down

Jul 16 11:29:15.004: ISDN BR0/0/0 Q931: Ux_DLRelInd: DL_REL_IND received from L2

Your layer 3 is flapping...because your ayer 2 is flapping too.

3. Chnage the config

dial-peer voice 999011 pots

description - Inbound Dial-Peer -

incoming called-number 5343212..

direct-inward-dial

port 0/1/1

to

dial-peer voice 999011 pots

description - Inbound Dial-Peer -

incoming called-number .

direct-inward-dial

port 0/1/1

4. WHen you hear the "Orange informs you that the request number is not available"

Tha means that orange is not routing the call to your gateway. You need to ocntact orange on this. It is not gateway related.

Infact you need to contact your telco on all this issues. Your pysical circuit needs to be checked

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Silver

Re: IP Telephony problem in an office | Urgent, I need your help

Ok. Lets try again :).

if you Call the 1212 and you get the debug output you are including, this means your telco is forwarding the 1212 to you. If you call your other numbers 1204 to 1213 and you dont get anything when debugging, then your telco is not forwarding anything on this range (1204 to 1213) to you. So you should ask them to forward this numbers to you.

The second thing is that when you call 1212 you get " Cause i = 0x8492 - No user responding" from the debug you provided, which means the 1212 does not respond to a call establishment message with either an alerting or a connect indication. your 1212 needs to be configured in the CCM. go to CCM admin page-> Route Plan->Route Plan report-> search for 1212 or search for DN that "contains" 12. This will show you if 1212 is configured or not. Of not configured, try and configure 1212 on a test phone see if it rings the phone when you do an inbound Call.

VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

Zin,

His isdn circuit is not stable...his layer 1 shows inactive, his layer 2 flaps..I think he needs to check the circuit

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Silver

Re: IP Telephony problem in an office | Urgent, I need your help

Good catch aokanlawon, i didnt see it, i rated your post.

Your L3 is changing the state from UP to Down.

Check with the lazy telco guys, they should do their job :)

lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Details: I went under the CM the Route Plan report for this gateway and I have the folowing:

See attachement

lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

Details:

I went under route plan report in the CM for this gateway and I have the following:

See attachement

VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

laurent,

The DN 1212 is not configured.

Can you configure it on a phone and then test again

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
lap
New Member

Re: IP Telephony problem in an office | Urgent, I need your help

I sit remotely.

Can I configure it directly in the CM?

VIP Super Bronze

Re: IP Telephony problem in an office | Urgent, I need your help

Yes you can.

WHat you should do is to use one of the phones in CCM eg ex 1211...Configure a 2nd line on the phone and assign it ext 1212.

NB: call the user using that phone and inform him/her that you will be using their phone for a test..so they are not surprisede when they se another number on their phone

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
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