Collect Expressway Logs

Collecting Expressway(EXP) Diagnostic Logs



Select Maintenance > Diagnostics > Diagnostic Logging

Check “Take tcpdump while logging” and select “Start new log”
Do this on both EXP E and EXP C and reproduce the problem.
Once the problem is reproduced, stop the Diagnostic logs on each EXP “Stop logging”
Click Download the logs to download it. Log will be download .tar format

The file name will be diagnostic_log_fclxpresswayx01_XXX. tar

When publisher goes down, unable to recognize DTMF for the UCCX calls

I had to shutdown my publisher server and Primary Subscriber for UCS move to different DC. Due to this CUBE media resource got unregistered and it impacted UCCX  customer calls. The system was unable to recognize DTMF. The provider uses  RFC 2833 In a band and UCCX use Out of band, due to mismatch in DTMF you need MTP resource.


Provider -  RFC 2833 In band
UCCX Support only -  Out of band

I have changed following and media resource got registered back to CUCM and UCCX issue got fixed.

sccp ccm x.x.x.x identifier 1 version 7.0

sccp ccm group 1
 associate ccm 1 priority 1

UCCX Prompt Covert - Using Audacity

UCCX support only below format. You could convert the file using Audacity



·       Format: CCIT U-Law

·       Sample Size: 8-bit

·       Sample Rate: 8kHz


File>Export -> In the export dialog, choose ‘Save as type’ as  “Other uncompressed files

Format Options

Header = WAV

Encoding = U-Law

FAX Setup Over SIP

You may encounter FAX issues when you convert PRI to SIP. Few steps to troubleshoot FAX related issues

1- From CUCM/ ATA side we need to make sure T.38 FAX Relay is selected

2- ATA following should be selected

3- CUBE Side

voice service voip

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711ulaw

no fax-relay sg3-to-g3

4- Dial peer add following commands

fax-relay ecm disable

fax-relay sg3-to-g3

fax rate 14400

fax nsf 000000

5- Make sure on CUCM Region is properly configured. If ATA and CUBE are in two different Region, Make this two region codec is properly added.

6 -  CUBE you could enable following debugs to see what's happening for fax inbound and outbound

debug ccsip messages

debug voice ccapi inout

debug fax relay t30 all-level-1

Custom Windows 10 shortcuts

Here is two methods to create Custom Windows 10 shortcuts

Using Shortcut  

1-  In case if you wanted to access one particular excel (any application) file using RUN short cut Right click on blank area ->New ->Shortcut ->On next window you need to browse your file  -> Type a name for the short cut -> Press Finish

2- Cut that shortcut file and past in 'C:\Windows'

3 -  Open run cmd and type your shortcut file name


Custom Shortcut using CTRL+ALT

1- Enter 'explorer shell:AppsFolder' in Run

2-  In case you wanted to setup short cut for Notepad , Right click on Notepad -> Open file location ->Right click on the Notepad.exe application-> Properties -> Press CTRL and choose the shortcut letter
3-  To open the file press CTRL+ALT+ Shortcut letter

CUCM Media resourse usage from CLI

Following commands will provide media usage details from CUCM CLI.


show perf query counter "Cisco Media Streaming App" MTPStreamsAvailable
show perf query counter "Cisco Media Streaming App" MTPStreamsActive
show perf query counter "Cisco MTP Device" OutOfResources
show perf query counter "Cisco MTP Device" ResourceActive
show perf query counter "Cisco MTP Device" ResourceAvailable
show perf query class "Cisco MTP Device"

Identify the last User login in CUCM

Login CUCM SSH

Enter file list activelog tomcat/logs/*

you will find localhost_access_log.txt text files , copy one of the file name

Enter file view  activelog tomcat/logs/localhost_access_log.txt

you could see the IP and user ID of users who logged in CUCM.