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

[lap]

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.

[Ayodeji Okanlawon]

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!

[lap]

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

[Zin.Karzazi · Accepted solution]

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 :).

[Ayodeji Okanlawon]

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!

[florian.kroessbacher]

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]

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!

[Ayodeji Okanlawon]

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

[Zin.Karzazi]

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.

[Ayodeji Okanlawon]

Zin,

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

[Zin.Karzazi]

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]

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

See attachement

[lap]

Details:

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

See attachement

[Ayodeji Okanlawon]

laurent,

The DN 1212 is not configured.

Can you configure it on a phone and then test again

[lap]

I sit remotely.

Can I configure it directly in the CM?

[Ayodeji Okanlawon]

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