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AMA-CUCM Troubleshooting: Best Practices for Reading Trace Files

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Beginner

Call manager 8.5 incoming silent Calls from SIP server,

Dear All,

Hope you are all doing well,

I need your kind support and advices regarding the below setup,

CM ====>> WAN ======>> SIP server (the call successfully incited and you can hear the voice clearly from IP phone to mobile, but you cannot hear the voice form the mobile to IP phone)

SIP server ======>> WAN ======>> CM (cann't recieve incoming call)

Please Help,

Thanks in advanced,

Ahmed

Everyone's tags (4)
1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: Call manager 8.5 incoming silent Calls from SIP server,

Also, I went through the SDI trace you attached. There are no SIP calls in it. Looks like you didnt get it right :-) Please try with the help of the document I provided. Let me know how it goes.

Regards,

Harmit.

14 REPLIES 14
Enthusiast

Call manager 8.5 incoming silent Calls from SIP server,

Please post a copy of your sh run results. 

I am haveing a simular problem. My outbound calls to landlines and mobiles work great.  My problem is I cannot get SIP inbound calls to work at all.

Enthusiast

Call manager 8.5 incoming silent Calls from SIP server,

After lots of digging around, we found a solution (for me).

I am running IOS 15.1-4 and there seems to be a new  command in it called TRUSTED IP LIST that is turned on by defualt.  I am  not sure if the command is new or that is is on by defualt. Anyways,  once I added the IP address (it will NOT accept a DNS address), my calls  started coming in.

Thanks so much to Soct B at Net Cert Labs.

Beginner

Call manager 8.5 incoming silent Calls from SIP server,

Hi Michael,

Many thanks for your reply,

I'm very happy that al last I found some one has the same setup ,

I found the Trusted IP List at:

System > Service Parameters > Cisco Extension Mobility > Advanced

I add the SIP server IP address to the trusted IP list,

but still I have the same problem that I had one way audio, from IP phone ======>> WAN ====>> SIP ====>> GSM

please advise,

Thanks in advanced,

Ahmed

Cisco Employee

Call manager 8.5 incoming silent Calls from SIP server,

Hi Ahmed,

I think what Michael was referring to was the Toll-Fraud prevention feature is IOS 15.1(2)T onwards:

https://supportforums.cisco.com/docs/DOC-12228

http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a0080b3e123.shtml

Can you check the same to see if that is causing the issue?

HTH.

Regards,

Harmit.

Beginner

Call manager 8.5 incoming silent Calls from SIP server,

Dear Hrmsing,

Many thanks for your reply,

I need to bring something to your mind that I don't have a voice gateway so where to execute this command in the call manager 8.5 ?

thanks in advanced,

Ahmed,

Contributor

Call manager 8.5 incoming silent Calls from SIP server,

Hi

Where did you connect the ISP modem

Or you have created a sip trunk to the cucm pointed to a sip server and teh cucm is open in the internet

Please rate all useful posts Regards Chrysostomos ""The Most Successful People Are Those Who Are Good At Plan B""
Beginner

Re: Call manager 8.5 incoming silent Calls from SIP server,

Hi Chrysosto,

Many thanks for your reply,

I used the SIP trunk through WAN,

Best Regards,

Ahmed,

Cisco Employee

Call manager 8.5 incoming silent Calls from SIP server,

Hi Ahmed,

Can you please collect the following for on such test call where you experience one way audio:

++ detailed UCM SDI/SDL traces from all nodes in the cluster with SIP Stack and SIP Call Processing boxes checked. Please gather the traces for about 10 minutes.

++ "show network cluster" output from the Pub CLI.

++ Call details such as calling party, called party numbers, timestamp of the test call, IP phone MAC Address and IP address, IP address of the SIP server.

++ IP Phone model, phone load and exact UCM version.

Also, is there a firewall between the IP phone and SIP server? Do you see RX and TX count incrementing when you press ? twice on the IP phone? Did you try doing a trace route from the switch where the IP phone is connected to the far end SIP server and vice versa? Is the path the same for both directions? Are you able to ping both ways?

Please upload this data and I'll review it to see what's going on.

Regards,

Harmit.

Beginner

Re: Call manager 8.5 incoming silent Calls from SIP server,

Dear Hamsing,

I'm really grateful for your reply,

I tried my best for the last day to complete what you ask for,

so please find the information below,

- Regarding the SDI/SDL please find the attached for the Call Manager, I used RTMT real time monitoring tool 8.7,

- admin:show network cluster

      10.114.14.10 cm01dc  Publisher authenticated

- Calling Party = 9.!

- Called party numbers = all international numbers,

- IP phone MAC address and directory number (F47F35A363E9 /  1045 )

     IP phone IP address = 10.114.35.55

- SIP Server IP address: 66.152.187.165 (sip1.catiphone.com)

     Phone Type

Product Type: 

Cisco 7945

Device Protocol: 

SCCP

Active Load ID

SCCP45.9-1-1SR1S





- UCM version

     Cisco Unified CM Administration

      System version: 8.5.1.10000-26

- The Trace Route from the CM to SIP server (the SIP is ping able and vise versa)

     ping result:

C:\Users\yassin.admin>ping 66.152.187.165

Pinging 66.152.187.165 with 32 bytes of data:

Reply from 66.152.187.165: bytes=32 time=280ms TTL=51

Reply from 66.152.187.165: bytes=32 time=284ms TTL=51

Reply from 66.152.187.165: bytes=32 time=278ms TTL=51

Reply from 66.152.187.165: bytes=32 time=278ms TTL=51

Trace route result,

C:\Users\yassin.admin>tracert -d 66.152.187.165

Tracing route to 66.152.187.165 over a maximum of 30 hops

  1    <1 ms    <1 ms    <1 ms  10.114.14.252

  2    <1 ms    13 ms    39 ms  109.224.3.209

  3    11 ms    19 ms     7 ms  91.142.63.11

  4     9 ms    31 ms     8 ms  192.168.250.2

  5     *        *        *     Request timed out.

  6     *        *        *     Request timed out.

  7     *        *        *     Request timed out.

  8     *        *      228 ms  134.222.105.168

  9   297 ms   140 ms   148 ms  134.222.225.229

10   201 ms   279 ms   136 ms  134.222.231.178

11   125 ms   212 ms   265 ms  134.222.249.70

12   352 ms   360 ms   346 ms  89.149.185.222

13   274 ms   456 ms   284 ms  173.241.129.46

14   344 ms   467 ms   422 ms  69.27.173.70

15   362 ms   365 ms   317 ms  208.64.231.5

16   294 ms   273 ms   279 ms  66.152.187.165

Trace complete.

The SIP company provide me with trace route from their side to CM,

traceroute to 109.224.3.212 (109.224.3.212), 30 hops max, 40 byte packets

  1  66.152.169.1  3.821 ms  3.760 ms  3.955 ms

  2  208.64.231.6  0.689 ms  0.677 ms  0.661 ms

  3  208.172.38.5  0.360 ms  0.573 ms  0.562 ms

  4  208.178.58.221 3.520 ms  3.503 ms  3.480 ms

  5  67.16.132.213  0.456 ms  0.432 ms  0.407 ms

  6  67.16.165.29  148.261 ms  148.326 ms  148.303 ms

  7  67.16.145.242  148.778 ms  166.487 ms  148.736 ms

  8  159.63.21.54  270.627 ms  270.612 ms  270.831 ms

  9  86.51.2.154  236.312 ms  236.500 ms  236.282 ms

10  * * *

11  80.90.173.162  262.409 ms  261.523 ms  261.673 ms

12  91.142.63.16  261.380 ms  261.280 ms  261.245 ms

13  109.224.3.210 355.736 ms  292.999 ms  288.803 ms

14  109.224.3.212 289.295 ms  286.747 ms  286.262 ms

- Yes we have a firewall, please see my design below:

     UCM ======>> Core Switch =====>> Juniper Firewall ====>>> WAN ======>> SIP server

Many thanks in advanced for your great effort,

Message was edited by: ahmed bishry

Message was edited by: ahmed bishry

Cisco Employee

Re: Call manager 8.5 incoming silent Calls from SIP server,

Hi Ahmed,

Thank you for the detailed info. Since you've mentioned Juniper, the following kb article would be worth reviewing:

http://kb.juniper.net/InfoCenter/index?page=content&id=KB18226

Secondly, to troubleshoot this, we need the following:

1>     UCM SDI and SDL detailed traces. Here is a link on how to configure the traces on the UCM admin page:

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml#calm

Please ensure the default trace parameters are enabled and trace level is set to detailed. Also, ensure you check "Enable SIP Call Processing Trace" and "Enable SIP Stack Trace". Please make sure you disable this once the testing is completed and the logs are gathered as it is resource intensive.

2>     Packet Capture from UCM Publisher (since there is only one node). You can SSH into the Publisher and run the following command:

utils network capture file capture count 100000 size all

You can do a Ctrl+C to stop the capture. Collect the same using RTMT.

Note:

++     Both UCM traces and packet capture should be collected for the same test call.

++     First replicate the inbound call failure and gather the calling party number (ANI), called party number (DNIS), timestamp of the test call, IP address and MAC address of the IP phone you are testing with (If it is the same as you provided earlier, you can ignore this)

++     Lastly replicate the one way audio issue for outbound calls with the same details as requested above.

HTH.

Regards,

Harmit.

Beginner

Re: Call manager 8.5 incoming silent Calls from SIP server,

Dear Harmit,

Many thanks for your kind effor,

Please find the last update about this issue,

 
Problem description
=================== 
one way audio for external calls.
 
issue is when the invite is sent from cucm to the sip provider 
the invite is getting Nat but the SDP information is not getting 
Natted so we need setup sip inspection on the firewall that will 
also change the sdp information on the packets that are being sent out .
 
 
 
The ip that is being sent out is a non routable ip for the provider 
that is the reason why the provider is not able to send the packets to us.

Below is the field that we need to be changed.

ACK sip:009647901900532@66.152.187.165:5060 SIP/2.0

Via: SIP/2.0/UDP 10.114.14.10:5060;branch=z9hG4bK2f4fd5f4e7

From: <>19145957544@10.114.14.10>;tag=12073~a93bc389-307c-4daf-991a-a8dc95023ef6-28565086

To: <sip:009647901900532@66.152.187.165>;tag=as20078565

Date: Thu, 29 Nov 2012 21:46:09 GMT

Call-ID: 2e256c00-b71d7a1-1a-a0e720a@10.114.14.10

Max-Forwards: 70

CSeq: 101 ACK

Allow-Events: presence

Content-Type: application/sdp

Content-Length: 234

v=0

o=CiscoSystemsCCM-SIP 2000 1 IN IP4 10.114.14.10

s=SIP Call

c=IN IP4 10.114.14.5

t=0 0

m=audio 24612 RTP/AVP 18 101

a=rtpmap:18 G729/8000

a=ptime:20

a=fmtp:18 annexb=no

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-15

The highlighted fields tells the provider the ip were it needs to send the ftp packets . Being in a public network the provider will not be able to route it.sip inspection will be able to fix the issue.

Thanks and regards,

Cisco Employee

Re: Call manager 8.5 incoming silent Calls from SIP server,

Also, I went through the SDI trace you attached. There are no SIP calls in it. Looks like you didnt get it right :-) Please try with the help of the document I provided. Let me know how it goes.

Regards,

Harmit.

Beginner

Re: Call manager 8.5 incoming silent Calls from SIP server,

Hi Hamit,

Hope you are doing well,

It was a litel while when we have last conversation, sorry for being late I was sick,

Please find the last attached files contain the SDI and SDL of the call manager,

I'm using the same IP phone to do the tests,

I also used the Juniper Firewall artical and I excute the Command on the Juniper firewall,

But unfortuantly I'm still facing the same issue,

Thanks in advanced,

Beginner

Re: Call manager 8.5 incoming silent Calls from SIP server,

Dear Harmit,

It has been a long time since we talked together regarding thins issue,

I'm happy to inform you that this case has been solved by two actions below:

1- Enable the MTP on the SIP trunk

2- Do an inspection NAT on the juniper firewall,

Many thanks for your great advices

Really I appreciate all your effort and advices,

Ahmed,

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