IP Traffic Exporting CUBE
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
bidirectional
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:
Enjoy
TheVoiceMan
Clear Hung/Stale calls on CUBE
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.
Enjoy
TheVoiceMan
List Firmware Files on TFTP CUCM Servers
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
Enjoy
TheVoiceMan
Viewing CUCM Trace Files and CUBE Debugs
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……
Enjoy
TheVoiceMan
Enterprise License Manager (ELM) – Insufficicent Licenses
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.
Enjoy
TheVoiceMan
Checking the Loaded Jabber-Config.xml file
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
http://CUCM_IP_Address:6970/jabber-config.xml
Enjoy
The Voice Man
Forcing Cisco IP Phones into SRST mode
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
Enjoy
The Voice Man
UCCE Client Links Cisco Desktop Admin, Supervisor & Agent Software
Hi All
Here are a couple of links that are useful for downloading the UCCE Desktop Administrator, Supervisor and Agent software directly from the local UCCE environment
These are located on the UCCE PG servers and can be downloaded from the below links, just modify the PG IP Address
UCCE Cisco Desktop Administrator Software Links
http://UCCE_PG_Server_IP_Address:8088/TUP/CAD/Admin.htm
Cisco Supervisor and Agent Desktop Software Links
http://UCCE_PG_Server_IP_Address:8088/TUP/CAD/Install.htm
Enjoy
The Voice Man
Configuring Outbound Services via Alternate Trunks ISDN & SIP
Hey All
Have had a few questions around how you can determine which trunk a call leaves a customers environment, and how you can force calls through a particular trunk. This is very useful for customers who have multiple services but only have certain number ranges down each service, or if the customer wants to block CLI on one of the trunks and only send certain call out this one and the rest out one of the other trunks.
To set this up a few additional commands and dial-peers need to be configured on the relevant voice gateway to first locate the call with the correct calling number and then ensure it leave the system through the correct trunk to the carrier.
Using the Cisco IOS “answer-address” command this can be achieved
Usage Guidelines
Use the answer-address command to identify the origin (or dial peer) of incoming calls from the IP network. Cisco IOS software identifies the dial peers of a call in one of two ways: by identifying either the interface through which the call is received or the telephone number configured with the answer-address command. In the absence of a configured telephone number, the peer associated with the interface is associated with the incoming call.
For calls that come in from a plain old telephone service (POTS) interface, the answer-address command is not used to select an incoming dial peer. The incoming POTS dial peer is selected on the basis of the port configured for that dial peer.
First create some translation rules and then assign these translation rules to the translation profiles.
These will pre-pend a number for the incoming call to the gateway from CUCM in the below example this is 77 and 88 and remove the 77 and 88 including the zero (0) when it leaves the gateway and goes to the carrier
Note: Try not to use 99 as the prepending digits as this causes issues when you are then trying to strip the digits leaving the gateway
!
voice translation-rule 77
rule 1 // /77/
!
voice translation-rule 88
rule 1 // /88/
!
voice translation-rule 777
rule 1 /^770/ //
!
voice translation-rule 888
rule 1 /^880/ //
!
voice translation-profile PrePend77Incoming
translate called 77
!
voice translation-profile PrePend88Incoming
translate called 88
!
voice translation-profile Remove77Outgoing
translate called 777
!
voice translation-profile Remove88Outgoing
translate called 888
!
The below dial peers capture the calls based on their mask when leaving the CUCM system and matches on one of the below dial peers which in turns forces the calls out the relevant Trunks
dial-peer voice 77 voip
description === Outgoing Calls ALLOW CLI ===
translation-profile incoming PrePend77Incoming
answer-address 024321….
dtmf-relay rtp-nte h245-alphanumeric
codec g711ulaw
no vad
!
dial-peer voice 88 voip
description === Outgoing Calls BLOCK CLI ===
translation-profile incoming PrePend88Incoming
answer-address 029876….
dtmf-relay rtp-nte h245-alphanumeric
codec g711ulaw
no vad
!
dial-peer voice 1 pots
description === Outgoing Calls BLOCK CLI ===
translation-profile outgoing Remove88Outgoing
destination-pattern 88T
progress_ind setup enable 3
progress_ind progress enable 8
port 0/0/0:15
!
dial-peer voice 2 pots
description === Outgoing Calls ALLOW CLI ===
translation-profile outgoing Remove77Outgoing
destination-pattern 77T
progress_ind setup enable 3
progress_ind progress enable 8
port 0/0/1:15
!
Below is also a default dial-peer which has the standard destination-pattern 0T which captures any calls without a mask and sends them out the defined default trunk.
dial-peer voice 3 pots
description ==== Outgoing Calls Default ====
destination-pattern 0T
progress_ind setup enable 3
progress_ind progress enable 8
port 0/0/2:15
!
!
Enjoy
The Voice Man
Configuring and Troubleshooting PVDM3 Modules
Hi All
Found a great link to a Cisco document which explains quite well how to confirm and troubleshoot DSP related issues for PVDM3 modules
Click to access pvdm3_config.pdf
Enjoy
The Voice Man
The Voice Man 