IP Traffic Exporting CUBE

November 28, 2014 Leave a comment

Hi All

Ever wanted to capture all traffic for a voice call on an interface on a CUBE

Below are the commands required to capture the info, it can then be opened in Wireshark for troubleshooting.

ip traffic-export profile <name> mode capture

interface <interface>
ip traffic-export apply <name> size 20000000

traffic-export interface <interface> clear
traffic-export interface <interface> start

Make test call

traffic-export interface <interface> stop
traffic-export interface <interface> copy ftp:



Categories: Gateways Tags: , ,

Clear Hung/Stale calls on CUBE

November 27, 2014 Leave a comment

Hi All

Have implemented several SIP services recently from all carriers and have found that sometimes the calls either don’t end correctly or some SIP call legs drop off…..

When this occurs the CUBE does not correctly remove these call legs and we end up with hung calls or stale calls on the CUBE.

If you have the “Max Connections” command configured you may find that these hung/stale calls will add to the total therefore hitting the “Max Connections” earlier than expected.

To check this run the following command

sh call active voice summary

Telephony call-legs: 0

SIP call-legs: 4

H323 call-legs: 0

Call agent controlled call-legs: 0

SCCP call-legs: 0

Multicast call-legs: 0

Total call-legs: 4

You can also use the following two commands to view the details of the calls

sh rtp call

show sip calls

Use the “called” number from the show commands given above and use the “clear call voice” command to clear the hung calls towards the ISP network with the Call ID and Cause Code Value of the hung call:

Clear Call Voice command: To clear one or more voice calls detected as inactive because there is no RTP or RTCP activity, use the clear call voice command in EXEC or privileged EXEC mode.




Categories: Gateways Tags: , , , ,

List Firmware Files on TFTP CUCM Servers

November 26, 2014 Leave a comment

Hi All

Here is a great tip for viewing phone firmware versions on a CUCM server.

Go to the CLI and type the model of the phone using the below standards

file list tftp SCCP42*
file list tftp SCCP45*
file list tftp SCCP75*

This will show you all the current firmware files that are installed on the CUCM server for these phone models



Categories: CUCM Tags: , , ,

Viewing CUCM Trace Files and CUBE Debugs

November 25, 2014 Leave a comment

Hi All

Thought I would post this up as I have been using this tool for ages now and assumed that most people know about it.

The TranslatorX tool is an awesome tool for viewing Debugs from a CUBE or loading in Trace files from RTMT for a CUCM issue, it clearly outputs line by line the debugs and traces and you can even load a folder containing multiple files all at the same time.

Try it out, great tool and best of all it is free……




Categories: CUCM, Gateways Tags: , , ,

Enterprise License Manager (ELM) – Insufficicent Licenses

November 25, 2014 Leave a comment

Hi All

It’s been awhile

So had an interesting one yesterday

A customer had an issues with licensing, they only had a temp license installed for a CUCM 9.1.2 installation and the grace period for applying the permanent license had expired.

What does this mean? Well they were not able to make any changes in the CUCM environment , it locked it down.

The permanent license was activated and applied but they realised that the amount of devices they had created were more than the permanent license amounted to, so they were still in the position of not being able to make changes even though the permanent license was there.

They ended up being about 7 devices over…………

So they have two options to sort this out, if you have gone over your licenses and can’t make any changes if you restart the CUCM Publisher once it is back up it gives you a 24hr grace period where you can make changes.

For this customer this would work so they could remove the additional 7 licenses and they would be back within there permanent license quota.

The other option if you do not want to restart and needed the issue sorted out straight away, you could request a temp license from Cisco Licensing and then apply this to the server, this would add to the existing permanent license and then allow you to remove the additional devices, once the temp license runs out you are back within you quota.



Categories: CUCM Tags: , ,

Checking the Loaded Jabber-Config.xml file

September 13, 2013 1 comment

Hi All

Have you ever needed to review the jabber-config.xml file  that is loaded on a system to confirm which options or parameters have been selected

There is an easy way to do this by typing the following into a browser



The Voice Man

Categories: IM & Presence

Forcing Cisco IP Phones into SRST mode

February 19, 2013 Leave a comment

Hi All

Have you ever wanted to know how to force your remote site Cisco IP Phones into SRST mode without turning off the CUCM servers or shutting down your WAN link. This can be achieved by using a access list on the router/WAN interface

Configure the access list that blocks the following

SIP: 5060 (TCP/UDP),
Secure SIP: 5061 (TCP/UDP),
SCCP: 2000 (TCP)
Secure SCCP: 2443 (TCP)
Standard RTP Ports: 16384-32767 (UDP)

ip access-list extended ACL-VOIP-CONTROL
deny tcp any any eq 5060
deny udp any any eq 5060
deny tcp any any eq 5061
deny udp any any eq 5061
deny tcp any any eq 2000
deny tcp any any eq 2443
deny udp any any range 16384 32767
permit ip any any

Apply the access control list to the WAN interface to which the administrator wishes to block voice traffic.

interface X/X
ip access-group ACL-VOIP-CONTROL in

The phones will now failover into SRST mode


The Voice Man

Categories: CUCM, Gateways